Document:

EXHIBIT 10.1
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                          SECURITIES PURCHASE AGREEMENT

                          dated as of January 10, 2001

                                      among

                           EXCHANGE APPLICATIONS, inc.

                                (the "Company"),
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                                       and

                           THE INVESTORS NAMED HEREIN

                                (the "Investors")
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                                Table of Contents
                                                                            Page

ARTICLE I DEFINED TERMS; RULES OF CONSTRUCTION................................1

   1.1    DEFINED TERMS.......................................................1
   1.2    RULES OF CONSTRUCTION...............................................7

ARTICLE II PURCHASE AND SALE OF SHARES; CLOSING...............................8

   2.1    CERTIFICATE OF AMENDMENT............................................8
   2.2    AUTHORIZATION OF ISSUANCE OF THE PREFERRED SHARES...................8
   2.3    ISSUANCE OF SERIES A PREFERRED STOCK................................8
   2.4    THE CLOSING.........................................................8
   2.5    USE OF PROCEEDS.....................................................9

ARTICLE III REPRESENTATIONS AND WARRANTIES OF THE COMPANY.....................9

   3.1    ORGANIZATION, POWER, AUTHORITY AND GOOD STANDING....................9
   3.2    CAPITALIZATION......................................................9
   3.3    AUTHORIZATION AND EXECUTION........................................10
   3.4    AUTHORIZATION OF PREFERRED SHARES AND RESERVED COMMON SHARES.......10
   3.5    NO CONFLICTS.......................................................10
   3.6    APPROVALS..........................................................11
   3.7    COMMISSION FILINGS; FINANCIAL STATEMENTS...........................11
   3.8    PRIVATE OFFERING...................................................11
   3.9    PROVIDED INFORMATION...............................................12
   3.10   CERTAIN CONTRACTS..................................................12
   3.11   INTELLECTUAL PROPERTY RIGHTS.......................................12
   3.12   LITIGATION AND OTHER PROCEEDINGS OR CLAIMS.........................13
   3.13   TERMINATION OF EMPLOYMENT..........................................13
   3.14   REGISTRATION RIGHTS................................................13
   3.15   BROKERS............................................................14

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF THE INVESTORS...................14

   4.1    AUTHORIZATION, EXECUTION AND ENFORCEABILITY........................14
   4.2    INVESTMENT REPRESENTATIONS.........................................14
   4.3    BROKERS............................................................15

ARTICLE V CLOSING DELIVERIES; POST-CLOSING COVENANTS.........................15

   5.1    COMPANY CLOSING DELIVERIES.........................................15
   5.2    INVESTOR CLOSING DELIVERIES........................................16
   5.3    POST-CLOSING COVENANTS.............................................16

ARTICLE VI INDEMNIFICATION...................................................23

   6.1    SURVIVAL OF REPRESENTATIONS, WARRANTIES, AGREEMENTS AND
             COVENANTS, ETC..................................................23
   6.2    INDEMNIFICATION....................................................23

ARTICLE VII MISCELLANEOUS....................................................24

   7.1    EXPENSES...........................................................24
   7.2    PARTIES IN INTEREST; ASSIGNMENT....................................24
   7.3    ENTIRE AGREEMENT...................................................24
   7.4    NOTICES............................................................24
   7.5    AMENDMENTS.........................................................25
   7.6    GOVERNING  LAW; WAIVER OF JURY TRIAL...............................26
   7.7    NO THIRD PARTY RELIANCE............................................26
   7.8    SUBMISSION TO JURISDICTION.........................................26
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   7.9    EXTENSION; WAIVER..................................................27
   7.10   SEVERABILITY.......................................................27
   7.11   INDEPENDENCE OF AGREEMENTS.........................................27
   7.12   COUNTERPARTS; FACSIMILE SIGNATURES.................................27

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                                    SCHEDULES

Schedule I          -      Investors
Schedule 3.1        -      Organization
Schedule 3.2        -      Capitalization
Schedule 3.7        -      Commission Filings; Financial Statements
Schedule 3.11       -      Intellectual Property
Schedule 3.12       -      Litigation and other Proceedings or Claims
Schedule 3.14       -      Registration Rights

                                    EXHIBITS

Exhibit A           -      Form of Registration Rights Agreement
Exhibit B           -      Form of Certificate of Designation
Exhibit C           -      Form of Company Counsel Opinion

                                      -ii-
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                  SECURITIES PURCHASE AGREEMENT, dated as of January 10, 2001,
among EXCHANGE APPLICATIONS, inc., a Delaware corporation (the "Company"), and
the INVESTORS listed on Schedule I (each individually an "Investor" and
collectively, the "Investors").

                  The Company together with each of its Subsidiaries,
collectively, is primarily in the business of providing marketing automation and
enterprise customer relationship management solutions to companies (the
"Business"). The Company desires to raise equity financing, and the Investors
are willing to purchase certain shares of the Company's capital stock in
connection therewith, all on the terms and subject to the conditions set forth
herein.

                  ACCORDINGLY, in consideration of the foregoing and the
covenants, agreements, representations and warranties contained in this
Agreement, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged by the parties, the parties hereto
hereby agree as follows:

                                   ARTICLE I

                      DEFINED TERMS; RULES OF CONSTRUCTION

1.1      DEFINED TERMS.

         Capitalized terms used and not otherwise defined in this Agreement have
the meanings ascribed to them below or in the other locations of this Agreement
specified below:

                  "Accountants" has the meaning given to such term in Section
5.3(b)(i)(C).

                  "Affiliate" means, with respect to any specified Person, any
other Person that directly, or indirectly through one or more intermediaries,
controls, or is controlled by, or is under common control with, such specified
Person. As used in this definition, the term "control" (including, with
correlative meaning, the terms "controlling," "controlled by" and "under common
control with") as used with respect to any Person, means the possession, direct
or indirect, of the power to direct or cause the direction of the management and
policies of such Person, whether through the ownership of voting Securities, by
contract or otherwise.

                  "Audit Committee" means the committee of the Board Directors
which shall oversee all financial accounting and auditing activities of the
Company and shall perform such other functions as is customary for companies
similar to the Company, including approving the engagement of the Company's
auditors and approving the audit prior to its issuance each year.

                  "Best Knowledge" has the meaning given to such term in Section
1.2.

                  "Board" and "Board of Directors," unless otherwise specified,
means the Board of Directors of the Company.

                  "Business" has the meaning given to such term in the Preamble
to this Agreement.
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                  "Business Day" means each day, except Saturday, Sunday,
Federal holidays and any other state-recognized holidays in the States of New
York and Massachusetts.

                  "By-laws" means the by-laws of the Company, as amended and in
effect at the time in question.

                  "Certificate of Designation" has the meaning given to such
term in Section 2.1.

                  "Certificate of Incorporation" means the certificate of
incorporation of the Company, as amended and restated and in effect at the time
in question including the Certificate of Designation.

                  "Change of Control" means the acquisition (whether by merger,
recapitalization, stock purchase or otherwise) by any Person, of beneficial
ownership (within the meaning of Rule 13d-3 promulgated under the Exchange Act)
of more than 50% of either (i) the then outstanding shares of capital stock of
the Company or (ii) the combined voting power of the then outstanding voting
securities of the Company entitled to vote generally in the election of
directors.

                  "Claim" means any claim, demand, assessment, judgment, order,
decree, action, cause of action, litigation, suit, investigation or other
proceeding.

                  "Closing" has the meaning given to such term in Section 2.4.

                  "Closing Date" has the meaning given to such term in Section
2.4.

                  "Commission" means the United States Securities and Exchange
Commission.

                  "Commission Filings" means all reports, Registration
Statements and other filings filed by the Company with the Commission (and all
notes, exhibits and schedules thereto and documents incorporated by reference
therein).

                  "Common Stock" means the common stock, $.001 par value per
share, of the Company.

                  "Common Stock Equivalents" means all shares of Common Stock
outstanding and all shares of Common Stock issuable (without regard to any
present restrictions on such issuance) upon the conversion, exchange or exercise
of all Securities of the Company that are convertible, exchangeable or
exercisable for shares of Common Stock.

                  "Company" has the meaning given to such term in the caption to
this Agreement.

                  "Company Contracts" has the meaning given to such term in
Section 3.10.

                  "Contract" means any written or oral loan, contract,
agreement, or credit agreement, note, bond, mortgage, indenture, lease,
sublease, purchase order, instrument, permit, concession, franchise or license.

                  "Documents " means the Equity Documents and the Financing
Documents.

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                  "Encumbrances" mean any liens, charges, encumbrances, claims,
options, proxies, pledges, security interests or other similar rights of any
nature.

                  "Equity Documents" means this Agreement, the Certificate of
Designation, the Registration Rights Agreement and all other documents or
instruments designated as Equity Documents by the Company and the Investors.

                  "Equity Incentive Plans" means the (i) 2000 Customer Analytics
Holdings, Inc. Equity Incentive Plan, (ii) 1999 Customer Analytics, Inc. Stock
Option and Purchase Plan, (iii) 1999 GBI Stock Acquisition Plan, (iv) 1999
Knowledge Stream Partners, Inc. Stock Option Plan, (v) 1998 Stock Incentive
Plan, (vi) 1998 Director Stock Option Plan, (vii) 1998 Employee Stock Purchase
Plan and (viii) 1996 Stock Incentive Plan, each as amended, and any other stock
option, issuance, appreciation rights or other equity incentive plan for the
directors, officers and employees of, and consultants to, the Company, which
plan has been approved by the Compensation Committee.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
amended.

                  "Excluded Securities" means (i) Securities issued or granted
to eligible officers, employees or directors of, or consultants to, the Company
pursuant to the Equity Incentive Plans and any Securities issued upon exercise
of such Securities; (ii) any Securities issued by the Company in a Public
Offering; (iii) Securities issued upon the exercise, conversion or exchange of
any Common Stock Equivalents outstanding on the Closing Date or pursuant to the
MicroStrategy Agreement; (iv) Series A Preferred Stock issued by the Company
pursuant to this Agreement, or Common Stock issued upon conversion thereof; (v)
Securities issued as a stock dividend or upon any stock split, recapitalization
or other subdivision or combination of Common Stock; (vi) Securities issued
pursuant to acquisitions, strategic alliances and joint ventures; and (vii)
Securities deemed Excluded Securities by the Requisite Preferred Holders.

                  "Financing Documents" means the Note Purchase Agreement, dated
December 15, 2000, among the Company and the Investors (the "Note Purchase
Agreement"), the Bridge Promissory Note Due January 10, 2001, dated December 15,
2000, issued by the Company to the Investors (the "Note") and all other
documents, certificates or instruments executed in connection with the
transactions contemplated thereby.

                  "Fundamental Documents" means the documents by which any
Person (other than an individual) establishes its legal existence or which
govern its internal affairs. The Fundamental Documents of the Company are the
Certificate of Incorporation and the By-laws.

                  "GAAP" means United States generally accepted accounting
principles, consistently applied.

                  "Governmental Entity" means any Federal, state, municipal, or
other government, governmental department, commission, board, bureau, agency or
instrumentality, or any court or tribunal.

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                  "InSight" means, collectively, InSight Capital Partners, IV,
L.P., InSight Capital Partners (Cayman) IV, L.P., InSight Capital Partners IV
(Fund B), L.P. and Insight Capital Partners IV (Co-Investors), L.P., and their
respective Affiliates.

                  "Investor" or "Investors" has the meaning given to such term
in the caption to this Agreement.

                  "Investor Indemnified Person" has the meaning given to such
term in Section 6.2(a).

                  "Investor Representatives" has the meaning given to such term
in Section 6.2(a).

                  "Law" means any constitution, law, statute, treaty, rule,
ordinance, permit, certificate, directive, requirement, regulation or Order (in
each case, whether foreign or domestic) of any Governmental Entity.

                  "Liability" means any liability or obligation, whether known
or unknown, asserted or unasserted, absolute or contingent, accrued or
unaccrued, liquidated or unliquidated and whether due or to become due,
regardless of when asserted.

                  "Lien" means any security interest, pledge, lien, bailment (in
the nature of a pledge or for purposes of security), mortgage, deed of trust,
the grant of a power to confess judgment, conditional sale or title retention
agreement (including any lease in the nature thereof), charge, encumbrance,
easement, reservation, restriction, cloud, right of first refusal or first
offer, option, commitment or other similar arrangement or interest in real or
personal property, whether oral or written.

                  "Loss" means any loss, Liability, Claim, cost, damage,
deficiency, Tax, penalty, fine or expense, including interest, penalties,
reasonable legal and accounting fees and expenses and all amounts paid in
investigation, defense or settlement of any of the foregoing which any such
party may suffer, sustain or become subject to, as a result of, in connection
with, relating or incidental to or by virtue of any indemnifiable event or
condition (including derivative actions brought through or in the name of the
Company).

                  "Material Adverse Effect" means, with respect to the Company,
a material adverse effect on the business, operations, assets, conditions
(financial or otherwise), operating results, liabilities or prospects of the
Company and its Subsidiaries, taken as a whole, since November 14, 2000.

                  "MicroStrategy Agreement" means the Payment and Registration
Rights Agreement, dated as of December 28, 1999, between the Company and
MicroStrategy Incorporated in effect on the Closing Date or as amended from time
to time.

                  "NASD" means the National Association of Securities Dealers,
Inc.

                  "NASD Rules Violation" means the Company issuing voting
Securities of the Company in violation of NASD Rules 4310, 4350(i)(1)(D), 4351
or any similar rule promulgated by the NASD and applicable to the Company,
whether or not the shares of Common Stock are

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then listed with NASDAQ or quoted on the Nasdaq National Market System or traded
in the over-the-counter market. A violation of NASD Rule 4350(i)(1)(D) will
result if, pursuant to any provision of the Certificate of Designation, the
Company issues more than 6,488,781 shares of Common Stock (such number
representing approximately 19.9% of the shares of Common Stock issued and
outstanding immediately prior to the Closing).

                  "Note" has the meaning given to such term in the definition of
"Financing Documents".

                  "Note Purchase Agreement" has the meaning given to such term
in the definition of "Financing Documents".

                  "Observer" has the meaning given to such term n Section
5.3(c)(i).

                  "Offered Securities" has the meaning given to such term
Section 5.3(a)(i).

                  "Orders" means judgments, writs, decrees, injunctions, orders,
compliance agreements or settlement agreements of or with any Governmental
Entity or arbitrator.

                  "Person" shall be construed in the broadest sense and shall
include an individual, a partnership, a corporation, a limited liability
company, an association, a joint stock company, a trust, a joint venture, an
unincorporated organization, and any other entity, including a Governmental
Entity.

                  "Preemptive Offer Acceptance Notice" has the meaning given to
such term in Section 5.3(a)(ii).

                  "Preemptive Offer Period" has the meaning given to such term
in Section 5.3(a)(i).

                  "Preferred Shares" has the meaning given to such term in
Section 2.2.

                  "Preferred Stock" means the preferred stock, $.001 par value
per share, of the Company.

                  "Proceeding" means any action, suit, proceeding, complaint,
charge, hearing, inquiry or investigation before or by a Governmental Entity or
an arbitrator or administrator.

                  "Projections" has the meaning given to such term in Section
3.9.

                  "Proportionate Percentage" means at any time, with respect to
any Series A Preferred Holder, the fraction, expressed as a percentage, the
numerator of which is the total number of shares of Series A Preferred Stock
purchased on the Closing Date and held by such Series A Preferred Holder and the
denominator of which is the total number of shares of Series A Preferred Stock
purchased on the Closing Date and held by all Series A Preferred Holders, each
at the time of determination.

                  "Proposed New Investor" has the meaning given to such term in
Section 5.3(a)(i).

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                  "Public Offering" means the consummation of a public offering
of Common Stock pursuant to a Registration Statement declared effective under
the Securities Act, except that a Public Offering shall not include an offering
of securities to be issued as consideration in connection with a business
acquisition or an offering of Securities issuable pursuant to an employee
benefit plan.

                  "Refused Securities" has the meaning ascribed to such term in
Section 5.3(a)(iii).

                  "Registration Statement" means any registration statement of
the Company, and all amendments and supplements to any such Registration
Statement, including post-effective amendments, in each case including the
prospectus contained therein, all exhibits thereto and all material incorporated
by reference therein, filed with the Commission.

                  "Registration Rights Agreement" means the Registration Rights
Agreement, dated the date hereof, among the Company and the Investors (as
defined therein), the form of which is attached hereto as Exhibit A.

                  "Representative" of a Person shall be construed broadly and
shall include such Person's partners, officers, directors, employees, agents,
counsel, accountants and other representatives.

                  "Requisite Preferred Holders" means the holders of a majority
of the outstanding shares of Series A Preferred Stock at the time in question.

                  "Reserved Common Shares" has the meaning given to such term in
Section 2.2.

                  "Securities" means, with respect to any Person, such Person's
"securities" as defined in Section 2(1) of the Securities Act and includes such
Person's capital stock or other equity interests or any options, warrants or
other securities or rights that are directly or indirectly convertible into, or
exercisable or exchangeable for, such Person's capital stock or other equity
interests.

                  "Securities Act" means the Securities Act of 1933, as amended.

                  "Series A Preferred Director" has the meaning given to such
term in Section 5.3(c)(ii)(A).

                  "Series A Preferred Holder" means a holder of outstanding
shares of Series A Preferred Stock.

                  "Series A Preferred Representative" means Insight Venture
Associates IV, L.L.C., or any successor thereto approved by the Company (which
approval shall not be unreasonably withheld).

                  "Series A Preferred Stock" means the Series A Convertible
Redeemable Preferred Stock, $.001 par value per share, of the Company.

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<PAGE>

                  "Subsidiary" means, at any time, with respect to any Person
(the "Subject Person"), (i) any Person of which either (x) more than 50% of the
Securities entitled to vote in the election of directors or comparable Persons
performing similar functions (excluding the Securities entitled to vote only
upon the failure to pay dividends thereon or other contingencies) or (y) more
than a 50% interest in the profits or capital of such Person, are at the time
owned or controlled directly or indirectly by the Subject Person or through one
or more Subsidiaries of the Subject Person or (ii) any Person whose assets, or
portions thereof, are consolidated with the net earnings of the Subject Person
and are recorded on the books of the Subject Person for financial reporting
purposes in accordance with GAAP.

                  "Tax" means, with respect to any Person, all income taxes
(including any tax on or based upon net income, gross income, income as
specially defined, earnings, profits or selected items of income, earnings or
profits) and all gross receipts, sales, use, ad valorem, transfer, franchise,
license, withholding, payroll, employment, excise, severance, stamp, occupation,
premium, property or windfall profits Taxes, alternative or add-on minimum
Taxes, customs duties and other Taxes, fees, assessments or charges of any kind
whatsoever, together with all interest and penalties, additions to Tax and other
additional amounts imposed by any taxing authority (domestic or foreign) on such
Person (if any).

                  "Trading Day" means any day on which securities are traded on
National Association of Securities Dealers, Inc.'s Automated Quotation System.

1.2      RULES OF CONSTRUCTION.

         The term "this Agreement" means this agreement together with all
schedules and exhibits hereto, as the same may from time to time be amended,
modified, supplemented or restated in accordance with the terms hereof. In this
Agreement, the term "Best Knowledge" of the Company means actual knowledge of
the executive officers of the Company, including Andrew Frawley, David
McFarlane, Dan Haley, Mike McGonagle, John O'Brien, George Abatjoglou and Kris
Zaepfel, after making reasonable inquiry of the matters in question. The use in
this Agreement of the term "including" means "including, without limitation."
The words "herein," "hereof," "hereunder" and other words of similar import
refer to this Agreement as a whole, including the schedules and exhibits, as the
same may from time to time be amended, modified, supplemented or restated, and
not to any particular section, subsection, paragraph, subparagraph or clause
contained in this Agreement. All references to sections, schedules and exhibits
mean the sections of this Agreement and the schedules and exhibits attached to
this Agreement, except where otherwise stated. The title of and the section and
paragraph headings in this Agreement are for convenience of reference only and
shall not govern or affect the interpretation of any of the terms or provisions
of this Agreement. The use herein of the masculine, feminine or neuter forms
shall also denote the other forms, as in each case the context may require or
permit. Where specific language is used to clarify by example a general
statement contained herein, such specific language shall not be deemed to
modify, limit or restrict in any manner the construction of the general
statement to which it relates. The language used in this Agreement has been
chosen by the parties to express their mutual intent, and no rule of strict
construction shall be applied against any party. Unless expressly provided
otherwise, the measure of a period of one month or year for purposes of this
Agreement shall be that date of the following month or year corresponding to the
starting date, provided that if no corresponding date exists, the measure

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<PAGE>

shall be that date of the following month or year corresponding to the next day
following the starting date. For example, one month following February 18 is
March 18, and one month following March 31 is May 1.

                                   ARTICLE II

                      PURCHASE AND SALE OF SHARES; CLOSING

2.1      CERTIFICATE OF AMENDMENT.

         At or prior to the Closing (as defined below), the Company shall file
with the Secretary of State of the State of Delaware a Certificate of
Designation (the "Certificate of Designation"), the form of which is attached
hereto as Exhibit B, which (i) designates 5,330,000 shares of the Company's
capital stock as Series A Preferred Stock and (ii) sets forth the terms,
designations, powers, preferences and relative rights and the qualifications,
limitations and restrictions, of the Series A Preferred Stock.

2.2      AUTHORIZATION OF ISSUANCE OF THE PREFERRED SHARES.

         Subject to the terms and conditions hereof, the Company has authorized
(i) the issuance and sale to the Investors of an aggregate of 5,325,645 shares
(the "Preferred Shares") of the Series A Preferred Stock and (ii) the
reservation of an aggregate of up to 6,488,781 shares of Common Stock issuable
upon the conversion of the Preferred Shares (the "Reserved Common Shares").

2.3      ISSUANCE OF SERIES A PREFERRED STOCK.

         At the Closing, subject to the receipt of the deliveries set forth in
Article V, (i) the Company shall issue, sell and deliver to each Investor that
number of Preferred Shares set forth opposite such Investor's name on Schedule I
hereto and (ii) (A) each Investor shall purchase from the Company such Preferred
Shares and shall deliver to the Company the amount set forth opposite such
Investor's name on Schedule I, payable by wire transfer of immediately available
funds to a bank account designated in writing by the Company and (B) the
Investors, acting as a group, shall surrender to the Company the Note (which
surrender shall terminate all obligations under the Note and the Company shall
mark the Note "Cancelled" or "Paid in Full"), each of (A) and (B) in full
payment of the purchase price for the Preferred Shares.

2.4      THE CLOSING.

         The closing of the issuance and sale of the Preferred Shares hereunder
(the "Closing") shall take place simultaneous with the execution and delivery of
this Agreement, at the offices of O'Sullivan Graev & Karabell, LLP, 30
Rockefeller Plaza, New York, New York 10112, or at such other place as is agreed
to by the parties. The date on which the Closing occurs is referred to herein as
the "Closing Date".

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<PAGE>

2.5      USE OF PROCEEDS

         The proceeds received by the Company from the sale of the Preferred
Shares shall be used by the Company for working capital and general corporate
purposes.

                                  ARTICLE III

                        REPRESENTATIONS AND WARRANTIES OF
                                   THE COMPANY

         As a material inducement to the Investors to enter into and perform
their respective obligations under this Agreement, the Company hereby represents
and warrants to each of the Investors as follows:

3.1      ORGANIZATION, POWER, AUTHORITY AND GOOD STANDING.

         Each of the Company and its Subsidiaries is duly organized, validly
existing and in good standing under the laws of the jurisdiction of its
incorporation or formation and has all requisite corporate or other power and
authority to own, lease and operate its assets and properties and to carry on
its business as presently conducted and as presently proposed to be conducted.
Each of the Company and its Subsidiaries is duly qualified and in good standing
to transact business as a foreign Person in those jurisdictions set forth on
Schedule 3.1, which constitute all the jurisdictions in which the character of
the property owned, leased or operated by the Company and each of its
Subsidiaries or the nature of the business or activities conducted by the
Company and each of its Subsidiaries makes such qualification necessary, except
where the failure to be so qualified would not have a Material Adverse Effect.
The Company has delivered to the Investors a correct and complete copy of the
Certificate of Incorporation. A copy of the By-laws is filed as an exhibit to
the Commission Filings.

3.2      CAPITALIZATION.

         (a) Immediately upon consummation of the Closing, the authorized,
issued and outstanding capital stock of the Company shall consist of:

                  (i) 10,000,000 shares of Preferred Stock, of which 5,330,000
         shall be designated as Series A Preferred Stock and validly issued and
         outstanding, fully paid and nonassessable; and

                  (ii) 150,000,000 shares of Common Stock, of which:

                       (A) 32,606,938 shares shall be validly issued and
                       outstanding, fully paid and nonassessable;

                       (B) 6,488,781 shares shall be reserved for issuance upon
                       conversion of the Series A Preferred Stock;

                       (C) 366,565 shares shall be reserved as treasury shares;
                       and

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<PAGE>

                       (D) 12,185,499 shares shall be reserved for issuance in
                       accordance with the Equity Incentive Plans.

         (b) Except as contemplated by the Equity Documents or otherwise set
forth on Schedule 3.2, there are, and immediately after consummation of the
Closing there will be, no (i) outstanding warrants, options, agreements,
convertible Securities or other commitments or instruments pursuant to which the
Company is obligated to issue, sell or otherwise transfer any capital stock or
other securities or (ii) preemptive or similar rights to purchase or otherwise
acquire Securities of the Company pursuant to any provision of Law, the
Company's Fundamental Documents or any Contract to which the Company is a party.

         (c) All Securities issued by the Company have been issued in
transactions in accordance in all material respects with applicable state and
federal laws and regulations governing the sale and purchase of Securities.

3.3      AUTHORIZATION AND EXECUTION.

         The Company has all requisite corporate power and authority to execute
and deliver each Equity Document to which it is a party, and any and all
instruments necessary or appropriate in order to effectuate fully the terms and
conditions of each such Equity Document and all related transactions, and to
perform its obligations and to consummate the transactions contemplated by each
such Equity Document. The execution, delivery and performance by the Company of
each Equity Document has been duly authorized by all requisite corporate action
by the Company, and each Equity Document has been duly executed and delivered by
the Company. No other corporate or stockholder action on the part of the Company
is necessary for such authorization, execution and delivery. Each Equity
Document constitutes a legal, valid and binding obligation of the Company,
enforceable against the Company in accordance with its terms, subject to
applicable bankruptcy, insolvency, reorganization, fraudulent conveyance,
moratorium or other similar Laws affecting creditors' rights and remedies
generally, and subject, in the case of enforceability, to general principles of
equity (regardless of whether enforcement is sought in a Proceeding at law or in
equity).

3.4      AUTHORIZATION OF THE PREFERRED SHARES AND RESERVED COMMON SHARES.

         The authorization, reservation, issuance, sale and delivery, as
applicable, of the Preferred Shares and the Reserved Common Shares have been
duly and validly authorized by all requisite corporate action on the part of the
Company. The Preferred Shares and the Reserved Common Shares (assuming the
issuance thereof in accordance with the applicable terms of this Agreement),
will be duly and validly issued and outstanding, fully paid and nonassessable,
with no personal Liability attaching to the ownership thereof, free and clear of
any Encumbrances whatsoever and with no restrictions on the voting rights
thereof and other incidents of record and beneficial ownership pertaining
thereto and not subject to any preemptive rights, rights of first refusal or
other similar rights of the stockholders of the Company.

3.5      NO CONFLICTS.

         The execution, delivery and performance by the Company of each Equity
Document to which it is a party, the issuance, sale and delivery of the
Preferred Shares and the Reserved

                                       10
<PAGE>

Shares, and compliance with the provisions hereof and thereof by the Company,
will not (a) violate any provision of Law or any Order applicable to the Company
or any of its properties or assets or (b) conflict with or result in any breach
of any of the terms, conditions or provisions of, or constitute (with notice or
lapse of time or both) a default (or give rise to any right of termination,
cancellation or acceleration) under, or result in the creation of, any
Encumbrance upon any of the properties or assets of the Company under the
Fundamental Documents of the Company or, except as previously disclosed in
writing to the Investors, any material Contract to which it is a party or (c)
conflict with or violate any provision of the Fundamental Documents of the
Company currently in effect.

3.6      APPROVALS.

         No permit, authorization, consent or approval of or by, or any
notification of or filing with, any Person is required in connection with the
execution, delivery or performance by the Company of each Equity Document to
which it is a party.

3.7      COMMISSION FILINGS; FINANCIAL STATEMENTS.

         (a) The Company has filed all Commission Filings that it has been
required to file with the Commission under the Securities Act and the Exchange
Act. As of the respective dates of their filing with the Commission, or the date
of any amendment thereto filed on or prior to the date hereof, the Commission
Filings complied as to form in all material respects with the applicable
provisions of the Securities Act and the Exchange Act and did not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements made therein, in the light
of the circumstances under which they were made, not misleading.

         (b) Each of the historical consolidated financial statements of the
Company (including any related notes or schedules) included in the Commission
Filings was prepared in accordance with GAAP (except as may be disclosed
therein), and complied in all material respects with the rules and regulations
of the Commission. Such financial statements fairly present in all material
respects the consolidated financial position of the Company and its Subsidiaries
as of the dates thereof and the consolidated results of operations, cash flows
and changes in stockholders' equity for the periods then ended (subject, in the
case of the unaudited interim financial statements, to normal, recurring
year-end audit adjustments). Except as set forth or reflected in the Commission
Filings filed prior to the date hereof or as set forth on Schedule 3.7, neither
the Company nor any of its Subsidiaries have any Liabilities or obligations of
any nature (whether accrued, absolute, contingent, unasserted or otherwise) that
individually or in the aggregate could reasonably be expected to have a Material
Adverse Effect.

3.8      PRIVATE OFFERING.

         Assuming the accuracy of the representations of the Investors in
Section 4.2, the offering, sale, issuance and delivery by the Company of the
Preferred Shares and the Reserved Common Shares (assuming the issuance thereof
in accordance with the applicable terms of this Agreement), are or will be, as
the case may be, exempt from registration under the Securities Act and
applicable state securities laws and the rules and regulations promulgated
thereunder.

                                       11
<PAGE>

Neither the Company or its Subsidiaries, nor any Person acting on their behalf,
has offered or sold or will offer or sell any Securities, or has taken or will
take any other action (including, without limitation, any offering of any
Securities of the Company under circumstances that would require, under the
Securities Act or any applicable blue-sky laws, the integration of such offering
with the transactions contemplated by this Agreement), which would subject the
transactions contemplated by this Agreement to the registration provisions of
the Securities Act.

3.9      PROVIDED INFORMATION.

         All written summaries provided by the Company to legal counsel for the
Investors on or about December 26, 2000 with regard to the events leading up to
the Company's press releases of September 29, 2000 and October 2, 2000 are
accurate in all material respects and do not contain any untrue statement of a
material fact or omit to state a material fact necessary in order to make the
statements contained therein not misleading in light of the circumstances under
which such statements are made. The financial projections concerning the Company
and its Subsidiaries and the transactions contemplated by this Agreement
contained in the "street plan" projections (the "Projections") that have been
made available to the Investors and its accountants in connection with the
transactions contemplated by this Agreement were at the time they were made
available to the Investors and their accountants prepared on a basis reflecting
the reasonable good faith estimates and judgments of the Company's management as
to the future financial performance of the Company and its Subsidiaries for the
periods covered thereby. The Projections are specifically and expressly limited
and qualified by the underlying written assumptions disclosed therein.

3.10     CERTAIN CONTRACTS.

         All material Contracts to which the Company or any of its Subsidiaries
is a party or may be bound that are required by Item 610(b)(10) of Regulation
S-K to be filed as exhibits to, or incorporated by reference in, the Company's
Form 10-K or the Company's Form 10-Q are referred to herein as "Company
Contracts". All Company Contracts are legal, valid and binding and in full force
and effect on the date hereof, except to the extent previously disclosed in
writing to the Investors, to the extent they have previously expired in
accordance with their terms or to the extent such failure to be so legal, valid
and binding would not reasonably be expected to have a Material Adverse Effect
and, neither the Company nor any of its Subsidiaries has violated any provision
of, or committed or failed to perform any act that, with or without notice,
lapse of time, or both, would constitute a default under the provisions of any
Company Contract, except as previously disclosed in writing to the Investors or
for defaults that would not, individually or in the aggregate, reasonably be
expected to result in a Material Adverse Effect.

3.11     INTELLECTUAL PROPERTY RIGHTS.

         (a) To the Company's Best Knowledge, each of the Company and its
Subsidiaries owns or is licensed to use all trademarks, copyrights, service
marks, and applications and registrations therefor, and all trade names, domain
names, web sites, customer lists, trade secrets, proprietary processes and
formulae, inventions, know-how, other confidential and proprietary information,
and other industrial and intellectual property rights necessary to permit the
Company and its Subsidiaries to carry on its business as presently conducted. To
the Company's

                                       12
<PAGE>

Best Knowledge, each of the Company and its Subsidiaries has the right to bring
infringement actions with respect to all trademarks, copyrights, service marks,
trade names, domain names, trade secrets, proprietary processes and formulae,
inventions, know how and other confidential and proprietary information that it
owns. Except as otherwise disclosed in Schedule 3.11, all registered patents,
copyrights, trademarks, and service marks owned by the Company and its
Subsidiaries are in full force and effect and are not subject to any Taxes or
maintenance fees. Except as otherwise disclosed in Schedule 3.11, there is no
pending or, to the Best Knowledge of the Company, threatened Claim or litigation
against the Company or any Subsidiary contesting the right to use its
intellectual property rights, asserting the material misuse of any thereof, or
asserting the material infringement or other material violation of any
intellectual property right of a third party. All inventions and know-how
conceived by employees of the Company and its Subsidiaries and used by the
Company and its Subsidiaries are owned by the Company or a Subsidiary. Except as
disclosed on Schedule 3.11, each of the Company and its Subsidiaries has taken
reasonable security measures to protect the secrecy, confidentiality and value
of its trade secrets, proprietary processes, formulae, inventions, know-how and
other confidential and proprietary information.

         (b) Except as otherwise disclosed in Schedule 3.12, no Proceedings or
Claims in which the Company or any Subsidiary alleges that any Person is
materially infringing upon, or otherwise materially violating, any patents,
trademarks, copyrights, service marks, and applications and registrations
therefor are pending, and none have been served by, instituted or asserted by
the Company or any Subsidiary, nor are any Proceedings or Claims threatened
alleging any such material violation or material infringement, nor does the
Company or any Subsidiary know of any valid basis for any such Proceedings or
Claims.

3.12     LITIGATION AND OTHER PROCEEDINGS OR CLAIMS.

         Except as set forth on Schedule 3.12, there are no (i) Proceedings or
Claims pending against or initiated by the Company or any Subsidiary or, to the
Best Knowledge of the Company, threatened against the Company or any Subsidiary,
whether at law or in equity, whether civil or criminal in nature, except for
Proceedings or Claims that, individually or in the aggregate, could not
reasonably be expected to have a Material Adverse Effect, or (ii) material
Orders with respect to the Company or any Subsidiary.

3.13     TERMINATION OF EMPLOYMENT.

         To the Company's Best Knowledge, no executive officer or key employee,
or any group of key employees, intends to terminate their employment with the
Company or any Subsidiary, nor does the Company or any Subsidiary have a present
intention to terminate the employment of any officer, key employee or group of
key employees.

3.14     REGISTRATION RIGHTS.

         Except as contemplated by the Registration Rights Agreement and except
as set forth on Schedule 3.14, no Person has any right to cause the Company to
effect the registration under the Securities Act of any shares of Common Stock
or any other Securities of the Company.

                                       13
<PAGE>

3.15     BROKERS.

         The Company has not  employed any broker or finder in  connection  with
the transactions contemplated by this Agreement.

                                   ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF THE INVESTORS

         Each Investor represents and warrants to the Company as follows:

4.1      AUTHORIZATION, EXECUTION AND ENFORCEABILITY.

         Each Investor has the requisite power and authority (corporate or
otherwise) to execute, deliver and perform the Equity Documents to which it is a
party and the transactions contemplated thereby, and the execution, delivery and
performance by such Investor of the Equity Documents to which it is a party have
been duly authorized by all requisite action by such Investor and each such
Equity Document, when executed and delivered by such Investor, constitutes a
legal, valid and binding obligation of such Investor, enforceable against such
Investor in accordance with its terms, subject to applicable bankruptcy,
insolvency, reorganization, fraudulent conveyance, moratorium or other similar
Laws affecting creditors' rights and remedies generally, and subject, as in the
case of enforceability, to general principles of equity (regardless of whether
enforcement is sought in a Proceeding at law or in equity).

4.2      INVESTMENT REPRESENTATIONS.

         (a) The Preferred Shares to be purchased by the Investors hereunder are
acquired for their own account, for investment and not with a view to the
distribution thereof in violation of the Securities Act or applicable foreign or
state securities Laws.

         (b) Each Investor understands that (i) the Preferred Shares have not
been, and that the Reserved Common Shares will not be, registered under the
Securities Act or applicable foreign or state securities Laws, by reason of
their issuance by the Company in a transaction exempt from the registration
requirements of the Securities Act and applicable foreign and state securities
Laws and (ii) the Preferred Shares, and the Reserved Common Shares, must be held
by the Investors or each Investor, as the case may be, indefinitely unless a
subsequent disposition thereof is registered under the Securities Act and
applicable foreign and state securities Laws or is exempt from registration
thereof. Each Investor is an "accredited investor" (as defined in Rule 501(a) of
Regulation D promulgated under the Securities Act).

         (c) Except for the acquisition of the Note by the Investors pursuant to
the Note Purchase Agreement and for the transactions contemplated hereby, no
Investor or any Affiliate has (i) bought or sold Securities, or options to buy
or sell Securities, of the Company, (ii) requested, instructed or knowingly
participated in a plan or arrangement with another Person to buy or sell
Securities, or options to buy or sell Securities, of the Company, at any time
during the period commencing on October 15, 2000 and ending on (and including)
the Closing Date.

                                       14
<PAGE>

4.3      BROKERS.

         None of the Investors have employed any broker or finder in connection
with the transactions contemplated by this Agreement.

                                   ARTICLE V

                   CLOSING DELIVERIES; POST-CLOSING COVENANTS

5.1      COMPANY CLOSING DELIVERIES.

         The obligation of each Investor to purchase and pay for the Preferred
Shares to be purchased hereunder at the Closing is subject to the delivery of
the following items (unless waived by such Investor).

         (a) Certificate of Designation. Evidence satisfactory to the Investors
that the Certificate of Designation has been filed with, and accepted by, the
Secretary of State of the State of Delaware.

         (b) Issuance of the Preferred Shares. The Company shall have duly
issued and delivered to each Investor the certificate or certificates registered
in the name of such Investor representing the number of Preferred Shares being
purchased by such Investor at the Closing as set forth on Schedule I under the
heading "Preferred Shares."

         (c) Reservation of Common Shares. Evidence satisfactory to the
Investors that the Company has reserved the Reserved Common Shares for issuance
upon conversion of the Preferred Shares.

         (d) Other Equity Documents. Each of the other Equity Documents shall
have been duly authorized, executed and delivered by the Company and the other
parties thereto and shall be in full force and effect and shall be enforceable
against the Company and such parties in accordance with their respective terms.

         (e) Opinion of Counsel. The Investors shall have received a favorable
legal opinion from Bingham Dana LLP, counsel to the Company, addressed to each
of the Investors, dated as of the Closing Date, in a form attached hereto as
Exhibit C.

         (f) Supporting Documents. The Investors shall have received copies of
the following supporting documents (in form and substance reasonably
satisfactory to the Investors):

                  (i) a certificate of the Secretary of State of the State of
         Delaware, dated as of a recent date as to the due incorporation and
         good standing of the Company;

                  (ii) a telegram, telex or other acceptable method of
         confirmation from the Secretary of State of the State of Massachusetts
         as of the close of business on the next business day preceding the
         Closing Date as to the continued good standing of the Company;

                                       15
<PAGE>

                  (iii) a certificate of the Secretary or an Assistant Secretary
         of the Company, dated as of the Closing Date and certifying on behalf
         of the Company: (1) that attached thereto is a true, correct and
         complete copy of each of the Fundamental Documents of the Company as in
         effect on the date of such certification (each of which shall be in
         form and substance reasonably satisfactory to the Investors); (2) that
         attached thereto is a true, correct and complete copy of all
         resolutions adopted by the Board of Directors (and any committees
         thereof) and the stockholders of the Company authorizing the execution,
         delivery and performance of the Equity Documents and the issuance,
         sale, and delivery of the Preferred Shares, and that all such
         resolutions are in full force and effect; (3) that the Fundamental
         Documents of the Company have not been amended since the date of the
         last amendment referred to in the certificate delivered pursuant to
         clause (i) above; and (4) the incumbency and specimen signature of all
         officers of the Company executing the Equity Documents, the stock
         certificates representing the Preferred Shares, and any certificate or
         instrument furnished pursuant hereto, and a certification by another
         officer of the Company as to the incumbency and signature of the
         officer signing the certificate referred to in this clause (iii); and

                  (iv) such additional supporting documents and other
         information with respect to the operations and affairs of the Company
         and its Subsidiaries as the Investors may reasonably request.

5.2      INVESTOR CLOSING DELIVERIES.

         The obligation of the Company to issue, deliver and sell the Preferred
Shares at the Closing is subject to the delivery of the following items (unless
waived by the Company):

         (a) Other Equity Documents. Each of the other Equity Documents shall
have been duly authorized, executed and delivered by the Investors and the other
parties thereto and shall be in full force and effect and shall be enforceable
against the Investors and such parties in accordance with their terms.

         (b) Wire Transfers. Each Investor shall have delivered by wire transfer
of immediately available funds the amount set forth opposite such Investor's
name on Schedule I hereto under the heading "Cash Purchase Price" to such bank
account as the Company shall designate to each Investor in writing on or prior
to the day immediately preceding the Closing Date.

         (c) Tender of the Note. The Investors shall have surrendered to the
Company the Note.

5.3      POST-CLOSING COVENANTS.

(a)      Rights To Subscribe For Securities.

                  (i) For so long as any of the Investors and their Affiliates
         own collectively at least 75% of the Series A Preferred Stock purchased
         by the Investors on the Closing Date, in the event that any equity
         and/or equity-linked Securities (the "Offered Securities"), other than
         Excluded Securities, are proposed to be issued by the Company or

                                       16
<PAGE>

         any Subsidiary to any Person (a "Proposed New Investor"), the Company
         or any Subsidiary shall deliver to each Series A Preferred Holder a
         written notice (which notice shall state the number or amount of the
         Offered Securities proposed to be issued, the purchase price therefor
         and any other terms or conditions of the proposed issuance) of such
         issuance at least 30 days prior to the date of the proposed issuance
         (the "Preemptive Offer Period").

                  (ii) Each Series A Preferred Holder shall have the option,
         exercisable at any time during the first 20 days of the Preemptive
         Offer Period by delivering written notice to the Company (a "Preemptive
         Offer Acceptance Notice"), to subscribe for (i) the number or amount of
         such Offered Securities up to its Proportionate Percentage of the total
         number or amount of Offered Securities proposed to be issued and (ii)
         up to its Proportionate Percentage of the Offered Securities not
         subscribed for by other Series A Preferred Holders as specified in its
         Preemptive Offer Acceptance Notice. Any Offered Securities not
         subscribed for by the Series A Preferred Holders shall be deemed to be
         re-offered to and accepted by the Series A Preferred Holders exercising
         their options specified in clause (ii) of the immediately preceding
         sentence with respect to the lesser of (A) the amount specified in
         their respective Preemptive Offer Acceptance Notices and (B) an amount
         equal to their respective Proportionate Percentages (computed without
         including Series A Preferred Holders who have not exercised their
         option specified in clause (ii) of the immediately preceding sentence)
         with respect to such deemed reoffer. Such deemed reoffer and acceptance
         procedures described in the immediately preceding sentence shall be
         deemed to be repeated until either (x) all of the Offered Securities
         are accepted by the Series A Preferred Holders or (y) no Series A
         Preferred Holder desires to subscribe for more Offered Securities. The
         Company shall notify each Series A Preferred Holder within five days
         following the expiration of the Preemptive Offer Period of the number
         or amount of Offered Securities which such Investor has subscribed to
         purchase.

                  (iii) If Preemptive Offer Acceptance Notices are not given by
         the Series A Preferred Holders for all the Offered Securities, the
         Company may issue all or any part of such Offered Securities as to
         which Preemptive Offer Acceptances Notices have not been given by the
         Series A Preferred Holders (the "Refused Securities") to the Proposed
         New Investor, in accordance with the terms set forth in the Preemptive
         Offer. Upon the closing, which shall include full payment to the
         Company, of the sale to the Proposed New Investor of all the Refused
         Securities, the Series A Preferred Holders shall purchase from the
         Company, and the Company shall sell to the Series A Preferred Holders,
         the Offered Securities with respect to which Preemptive Offer
         Acceptance Notices were delivered by the Series A Preferred Holders, at
         the terms specified in the Preemptive Offer Acceptance Notice. In each
         case, any Offered Securities not purchased within 90 days of the end of
         the Preemptive Offer Period by the Proposed New Investor in accordance
         with this Section 5.3(a) may not be sold or otherwise disposed of until
         they are again offered to the Series A Preferred Holders under the
         procedures specified in this Section 5.3(a).

                  (iv) Notwithstanding the foregoing, no Series A Holder may
         exercise its right to subscribe to any Offered Securities pursuant to
         this Section 5.3(a) to the extent,

                                       17
<PAGE>

         and only to the extent, that the result of such exercise would (A)
         constitute a Change of Control or (B) result in a NASD Rules Violation.

         (b) Information Rights.

                  (i) Reports. For so long as 25% of the Series A Preferred
         Stock remains outstanding, the Company shall furnish to the Series A
         Representative the following:

                       (A) Monthly Statements. As soon as available, but no
              later than 30 days after the end of each monthly accounting
              period, an unaudited internal financial report of the Company,
              which report shall be prepared in a manner consistent with GAAP
              consistently applied, and otherwise in the form provided to the
              Company's senior management, and which shall include the
              following:

                            (1) profit and loss statement for such monthly
                                accounting period, together with a cumulative
                                profit and loss statement for the prior
                                twelve-month period and for the comparable
                                twelve-month period for the prior year;

                            (2) balance sheet as at the last day of such monthly
                                accounting period;

                            (3) cash flow analysis for such monthly accounting
                                period together with a cumulative cash flow
                                statement from the first day of the current year
                                to the last day of such monthly accounting
                                period;

                            (4) comparison between all of the actual figures
                                provided pursuant to clauses (1), (2) and (3)
                                above (including, in the cases of clauses (1)
                                and (2), the cumulative statements), for such
                                monthly accounting period and the comparable
                                figures for the prior year for such monthly
                                accounting period, with an explanation of any
                                material differences between them and compared
                                to the budget for such period; and

                            (5) a report by management of the Company of the
                                operating and financial highlights of the
                                Company for such monthly accounting period and
                                the cumulative period for the fiscal year to
                                date which shall include a comparison between
                                operating and financial results and the
                                corresponding plan or budget and a discussion of
                                the variances between current and prior periods.

              The reports furnished by the Company pursuant to clauses (1) and
              (5) of the preceding sentence shall be certified by the chief
              financial officer of the Company.

                                       18
<PAGE>

                       (B) Quarterly Report. As soon as available, but no later
              than 30 days after the end of each calendar quarter, in addition
              to the financial statements for the three prior monthly accounting
              periods, the Company shall complete a quarterly report, which
              quarterly report shall be certified by the chief financial officer
              of the Company.

                       (C) Annual Audit. As soon as available, but not later
              than 90 days after the end of each fiscal year of the Company,
              audited financial statements of the Company, which shall include a
              statement of cash flows and statement of operations for such
              fiscal year and a balance sheet as at the last day thereof, each
              prepared in accordance with GAAP (except as set forth in the notes
              thereto), and accompanied by the report of a firm of independent
              certified public accountants of nationally recognized standing
              selected by the Audit Committee (the "Accountants").

                       (D) Budget. Within 30 days after the end of each fiscal
              year of the Company, an annual updated consolidated budget and
              work plan, including projected income statements, balance sheets
              and cash flow statements (setting forth in detail the assumptions
              therefor) on a quarterly basis for the Company and its
              Subsidiaries for the immediately following fiscal year of the
              Company, which such budget and work plan shall be approved by the
              Board and the Requisite Preferred Holders at the first regularly
              scheduled meeting of the Board of the Company thereafter.

                       (E) Subsidiaries. If for any period the Company shall
              have any Subsidiary or Subsidiaries whose accounts are
              consolidated with those of the Company, then in respect of such
              period the financial statements delivered pursuant to the
              foregoing clauses shall be consolidated (and consolidating if
              normally prepared by the Company) financial statements of the
              Company and all such consolidated Subsidiaries.

                       (F) Accountants Reports. Promptly upon becoming
              available, copies of all reports prepared for or delivered to the
              management of the Company by the Accountants.

                       (G) Material Events. Promptly upon becoming aware of any
              condition or event that could reasonably be expected to have a
              Material Adverse Effect on the Company (including any material
              defaults, litigation, governmental inquiry, or discovery of a
              significant liability but excluding general market conditions), a
              report summarizing such condition or event and the Company's
              proposed response thereto.

                       (H) Miscellaneous. Promptly upon request, any other
              documentation or information reasonably requested by any Series A
              Preferred Holder.

                                       19
<PAGE>

                  (ii) Access to Records and Properties. For so long as at least
         25% of the Series A Preferred Stock remains outstanding, the Company
         shall afford to each of the Series A Preferred Representative and its
         Representatives, during normal business hours upon 3 Business Days
         advance notice, the right to (i) visit and inspect the assets and
         properties of the Company, (ii) examine upon reasonable advance notice,
         the books of accounts and records of the Company and (iii) make copies
         of such records and permit such Persons to discuss all aspects of the
         Company with any officers, employees or Accountants of the Company;
         provided, however, that such investigation shall not unreasonably
         interfere with the operations of the Company. The Company will instruct
         the Accountants to discuss such aspects of the financial condition of
         the Company with the Series A Preferred Representative and its
         Representatives as may reasonably request, and to permit the Series A
         Preferred Representative and its Representatives to inspect, copy and
         make extracts from such financial statements, analyses, work papers and
         other documents and information (including electronically stored
         documents and information) prepared by the Accountants with respect to
         the Company as may reasonably request. All costs and expenses incurred
         by the Series A Preferred Representative and its Representatives in
         connection with exercising such rights of access shall be borne by the
         Series A Preferred Representative, and all out-of-pocket costs and
         expenses incurred by the Company in complying with any extraordinary
         requests by the Series A Preferred Representative and its
         Representatives in connection with exercising such access rights shall
         be borne by the Series A Preferred Representative.

                  (iii) Confidential Information. Each Series A Preferred Holder
         and its Representatives shall hold in confidence all nonpublic
         information of the Company provided or made available to such Series A
         Preferred Holder and its Representatives pursuant to this Section
         5.3(b) until such time as such information has become publicly
         available other than as a consequence of any breach by such Series A
         Preferred Holder and its Representatives of its confidentiality
         obligations hereunder (provided that such information may be disclosed
         to any other Series A Preferred Holder and Representatives who are
         bound by this provision) and shall not (A) trade or otherwise directly
         or indirectly transfer any Securities of the Company in violation of
         the Securities Act or Exchange Act or (B) use such information for any
         purpose other than exercise of its rights as a holder of Securities and
         its rights under this Agreement and the Related Documents.

         (c) Board of Directors; Committees.

                  (i) Observation Rights. Two representatives appointed by the
         Requisite Preferred Holders (each such representative, an "Observer",
         and together, the "Observers") shall be entitled to serve as observers
         at all meetings of the Boards of Directors of the Company and each
         Subsidiary and all committees thereof. Such right shall from time to
         time be exercisable by delivery to the Company of written notice from
         the Requisite Preferred Holders specifying the names of the Observers.
         Such right of the Requisite Preferred Holders to appoint the Observers
         shall expire on the date more than 75% of the shares of Series A
         Preferred Stock purchased on the Closing Date have been converted
         pursuant to the Certificate of Designation into Common Stock.

                                       20
<PAGE>

                       (A) Each of the Company and its Subsidiaries will give
              each Observer reasonable prior notice (it being agreed that the
              same prior notice given to the Board of Directors of the Company
              and its Subsidiaries shall be deemed reasonable prior notice) in
              any manner permitted in the Company's or each Subsidiary's By-laws
              for notices to directors of the time and place of any proposed
              meeting of each such Board of Directors, such notice in all cases
              to include true and complete copies of all documents furnished to
              any director in connection with such meeting. Each Observer will
              be entitled to be present in person as an observer at any such
              meeting or, if a meeting is held by telephone conference, to
              participate therein for the purpose of listening thereto.

                       (B) Each of the Company and its Subsidiaries will deliver
              to each Observer copies of all papers which may be distributed
              from time to time to the directors of the Company or each
              Subsidiary at such time as such papers are so distributed to them,
              including copies of any written consent. In addition, from time to
              time upon the request of each Observer, the Company or each
              Subsidiary will furnish to such Observer such information
              regarding the business, affairs, prospects and financial condition
              of the Company or each Subsidiary as such Observer may reasonably
              request.

                       (C) Each of the Company and its Subsidiaries shall
              reimburse the Observers for all travel and related expenses
              incurred by the Observers in connection with attending such
              meetings and monitoring the investment of the Series A Preferred
              Holders in the Series A Preferred Stock.

                       (D) Each Observer shall hold in confidence all nonpublic
              information of the Company provided or made available to such
              Observer pursuant to this Section 5.3(c) until such time as such
              information has become publicly available other than as a
              consequence of any breach by such Observer or any Investor of its
              confidentiality obligations hereunder (provided that such
              information may be disclosed to any other Persons who are bound by
              this provision) and shall not (1) trade or otherwise directly or
              indirectly transfer any Securities of the Company in violation of
              the Securities Act or Exchange Act or (2) use such information for
              any purpose other than exercise of its rights as a holder of
              Securities and its rights under this Agreement and the other
              Equity Documents.

                  (ii) Election of Board Members.

                       (A) The number of directors constituting the Board of
              Directors of the Company and each Subsidiary, as fixed from time
              to time by the Board of Directors of the Company or any Subsidiary
              in accordance with the Company's or each Subsidiary's By-laws,
              shall initially be not less than five. At the election of the
              Requisite Preferred Holders, the Company shall use its best
              efforts to cause an Observer or such other individual appointed by
              the Requisite Preferred Holders to serve in place of an Observer,
              or a replacement thereof, to be nominated and elected to the Board
              of Directors of the Company and each Subsidiary, and any

                                       21
<PAGE>

              committee thereof (the "Series A Preferred Director"); provided,
              however, that such right of the Requisite Preferred Holders to
              designate and approve a director shall expire on the date of the
              regularly scheduled annual meeting of the stockholders of the
              Company held immediately after more than 75% of the shares of
              Series A Preferred Stock purchased on the Closing Date have been
              converted pursuant to this Certificate of Designation into Common
              Stock and, at the written request of the Company, the Series A
              Director shall resign its position as a director of the Company
              and each Subsidiary at such meeting.

                       (B) The Series A Preferred Director shall be removed
              without cause only by the Requisite Preferred Holders.

                       (C) The Company shall reimburse the Series A Preferred
              Director for all travel and related expenses incurred by the
              Series A Preferred Director in connection with attending such
              meetings and monitoring the investment of the Series A Preferred
              Holders in the Series A Preferred Stock.

                       (D) The Company and each Subsidiary shall maintain
              directors' and officers' insurance policies customary for
              companies similar to the Company and its Subsidiaries, which
              policies shall name as an insured, or otherwise provide insurance
              coverage to, the Series A Director.

         (d) Work Plan. As soon as practicable after the Closing Date (but in
any event by January 17, 2001), the parties shall work together in good faith to
develop and complete a work plan for the Company and it Subsidiaries, which work
plan shall (i) include a timetable as to the hiring of personnel, product
development and other matters agreed to by the parties and (ii) be included in
the package of materials presented to the Board of the Company at the meeting
scheduled to be held on January 17, 2001.

         (e) Senior Financing. At the Company's request, the Investors shall
negotiate in good faith with the Company and its lenders to execute and deliver
reasonable and customary documentation required to subordinate (on reasonable
and customary terms) the right of the Series A Preferred Holders to receive
payments of cash from the Company with respect to their Series A Preferred
Stock.

         (f) Public Announcements. Except as otherwise required by Law or by the
rules of NASDAQ, so long as this Agreement is in effect, neither the Company or
the Investors, nor any of their respective Representatives, will issue or cause
the publication of any press release or make any other public announcement with
respect to the transactions contemplated by this Agreement without the consent
of the other party, which consent shall not be unreasonably withheld. The
Company and the Investors will cooperate with each other in the development and
distribution of all press releases and other public announcements with respect
to this Agreement and the transactions contemplated hereby, and will furnish the
other with drafts of any such releases and announcements as far in advance as
practicable.

         (g) Further Assurances. The Parties shall duly execute and deliver, or
cause to be duly executed and delivered, at its own cost and expense, such
further instruments and

                                       22
<PAGE>

documents and to take all such action, in each case as may be necessary or
proper in the reasonable judgment of the Company or the Investors to carry out
the provisions and purposes of this Agreement and the other Equity Documents.

                                   ARTICLE VI

                                 INDEMNIFICATION

6.1      SURVIVAL OF REPRESENTATIONS, WARRANTIES, AGREEMENTS AND COVENANTS, ETC.

         All statements contained in any other Equity Document or any closing
certificate delivered by the Company or the Investors pursuant to this Agreement
shall constitute representations and warranties by the Company or the Investors,
as applicable, under this Agreement. Notwithstanding any investigation made at
any time by or on behalf of any party hereto, all representations and warranties
contained in this Agreement or made in writing by or on behalf of the Company or
an Investor, as applicable, in connection with the transactions contemplated by
this Agreement shall survive the Closing until the fifteenth (15th) month
anniversary of the Closing Date. All agreements and covenants contained in this
Agreement or made in writing by or on behalf of the Company or an Investor, as
applicable, in connection with the transactions contemplated by this Agreement
shall survive the Closing indefinitely or until they are earlier terminated by
their terms.

6.2      INDEMNIFICATION.

         (a) In addition to all other rights and remedies available to the
Investors, the Company and each Subsidiary shall indemnify, defend and hold
harmless each Investor and its Affiliates and their respective partners,
officers, directors, employees, agents and representatives (collectively, the
"Investor Representatives"; and together with such Investor, the "Investor
Indemnified Persons") against all Losses in connection with or arising from any
Claim asserted against any Person (whenever made) resulting from or caused by
any transaction, status, event, condition, occurrence or situation relating to,
arising out of or in connection with (A) the status, or conduct of the Business
and affairs of, the Company, (B) the execution, delivery and performance by the
Company of this Agreement and the other Equity Documents and the transactions
contemplated hereby and thereby or (C) any actions taken by or omitted to be
taken by any of the Investor Indemnified Persons in connection with this
Agreement and the other Equity Documents or the transactions contemplated hereby
and thereby, except, in each case, to the extent such Losses result from the
gross negligence or willful misconduct of the Investor Indemnified Persons.

         (b) All indemnification rights hereunder shall survive indefinitely the
execution and delivery of the Equity Documents and the consummation of the
transactions contemplated herein and therein, notwithstanding any inquiry or
examination made for or on behalf of, or any knowledge of any of the Investors
and/or any of the other Investor Indemnified Parties or the acceptance by any
such Investor of any certificate or opinion.

                                  ARTICLE VII

                                  MISCELLANEOUS

7.1      EXPENSES.

         (a) The Company agrees to pay, and hold the Investors harmless against
Liability for the payment of: (i) the reasonable out-of-pocket expenses
(including attorneys' and accountants' fees and expenses) of the Investors
arising in connection with its due diligence and the negotiation and execution
of this Agreement and the other Equity Documents and the consummation of the
transactions contemplated by this Agreement and the other Equity Documents which
shall be payable at the Closing and may be netted from the wire transfers
contemplated by Section 2.3, (ii) the reasonable out-of-pocket expenses
(including attorneys' fees and expenses) of the Investors with respect to
documentation of the conversion of the Preferred Shares or any amendments or
waivers (whether or not the same become effective) under or in respect of this
Agreement, or the other agreements contemplated hereby and (iii) the reasonable
fees and expenses incurred by the Investors with respect to the enforcement by
the Investors or their permitted assigns of their rights granted under this
Agreement, or the agreements contemplated hereby.

         (b) The Company further agrees that it will pay, and will save the
Investors harmless from, any and all Liability with respect to any stamp or
similar Taxes which may be determined to be payable in connection with the
execution and delivery and performance of the Equity Documents or any
modification, amendment or alteration of the terms or provisions of the Equity
Documents, and that it will similarly pay and hold the Investors harmless from
all issue Taxes in respect of the issuance of the Reserved Common Shares to the
Investors.

7.2      PARTIES IN INTEREST; ASSIGNMENT.

         This Agreement shall bind and inure to the benefit of the Company, the
Investors and their respective successors and assigns. No party hereto may
assign either this Agreement or any of its rights, interests or obligations
hereunder without the prior written consent of the other parties; provided,
however, that each Investor may assign any of its rights under this Agreement to
any Affiliate of such Investor.

7.3      ENTIRE AGREEMENT.

         This Agreement, any other Document and the other writings and
agreements referred to herein or therein or delivered pursuant hereto contain
the entire understanding of the parties with respect to the subject matter
hereof and supersede all prior agreements and understandings among the parties
with respect thereto.

7.4      NOTICES.

         All notices, demands and requests of any kind to be delivered to any
party in connection with this Agreement shall be in writing and shall be deemed
to have been duly given if personally delivered or if sent by
internationally-recognized overnight courier or by registered or certified mail,
return receipt requested and postage prepaid, addressed as follows:

                                       23
<PAGE>

(a)      if to the Company, to:

                    Exchange Applications, Inc.
                    89 South Street
                    Boston, MA 02111
                    Attention:       Andrew J. Frawley
                    Telephone:       (617) 737-2244
                    Telecopy:        (617) 443-9143

                    with a copy to:

                    Bingham Dana, LLP
                    399 Park Avenue
                    New York, NY 10022-4689
                    Attention:       Neil W. Townsend
                    Telephone:       (212) 318-7722
                    Telecopy: (212) 752-5378

(b)      if to the Investors,  to:

                    InSight Capital Partners
                    527 Madison Avenue, 10th Floor
                    New York, N.Y. 10022
                    Attention:       Deven Parekh
                    Telephone:       (212) 230-9200
                    Telecopy:        (212) 230-9272

                    with a copy to:

                    O'Sullivan Graev & Karabell, LLP
                    30 Rockefeller Plaza
                    New York, New York  10112
                    Attention:       Ilan S. Nissan, Esq.
                    Telephone:       (212) 408-2400
                    Telecopy:        (212) 408-2420

or to such other address as the party to whom notice is to be given may have
furnished to the other parties hereto in writing in accordance with the
provisions of this Section 7.4. Any such notice or communication shall be deemed
to have been received (i) in the case of personal delivery, on the date of such
delivery, (ii) in the case of internationally-recognized overnight courier, on
the next business day after the date when sent and (iii) in the case of mailing,
on the third business day following that on which the piece of mail containing
such communication is posted.

7.5      AMENDMENTS.

         This Agreement may not be modified or amended, or any of the provisions
hereof be waived, except by written agreement of the Company and the Requisite
Preferred Holders.

                                       24
<PAGE>

7.6      GOVERNING  LAW; WAIVER OF JURY TRIAL.

         (a) All questions concerning the construction, interpretation and
validity of this Agreement shall be governed by and construed and enforced in
accordance with the domestic Laws of the State of New York without giving effect
to any choice or conflict of law provision or rule (whether in the State of New
York or any other jurisdiction) that would cause the application of the Laws of
any jurisdiction other than the State of New York. In furtherance of the
foregoing, the internal Law of the State of New York will control the
interpretation and construction of this Agreement, even if under such
jurisdiction's choice of law or conflict of law analysis, the substantive Law of
some other jurisdiction would ordinarily or necessarily apply.

         (b) BECAUSE DISPUTES ARISING IN CONNECTION WITH COMPLEX FINANCIAL
TRANSACTIONS ARE MOST QUICKLY AND ECONOMICALLY RESOLVED BY AN EXPERIENCED AND
EXPERT PERSON AND THE PARTIES WISH APPLICABLE LAWS TO APPLY (RATHER THAN
ARBITRATION RULES), THE PARTIES DESIRE THAT THEIR DISPUTES BE RESOLVED BY A
JUDGE APPLYING SUCH APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION
OF THE BENEFITS OF THE JUDICIAL SYSTEM AND OF ARBITRATION, THE PARTIES HERETO
WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING BROUGHT TO
ENFORCE OR DEFEND ANY RIGHTS OR REMEDIES UNDER THIS AGREEMENT OR ANY DOCUMENTS
RELATED HERETO.

7.7      NO THIRD PARTY RELIANCE.

         Anything contained herein to the contrary notwithstanding, the
representations and warranties of the Company contained in this Agreement (a)
are being given by the Company as an inducement to the Investors to enter into
this Agreement and the other Equity Documents (and the Company acknowledges that
the Investors have expressly relied thereon) and (b) are solely for the benefit
of the Investors. Accordingly, no third party (including, without limitation,
any holder of Securities of the Company) or anyone acting on behalf of such
third party (other than the Investors) shall be a beneficiary of such
representations and warranties and no such third party shall have any rights of
contribution against the Investors or the Company with respect to such
representations or warranties or any matter subject to or resulting in
indemnification under this Agreement or otherwise.

7.8      SUBMISSION TO JURISDICTION.

         Any Proceeding with respect to this Agreement or the other Equity
Documents may be brought in the courts of the State of New York and the United
States of America for the Southern District of New York and, by execution and
delivery of this Agreement, the Company hereby accepts for itself and in respect
of its property, generally and unconditionally, the jurisdiction of the
aforesaid courts. The Company hereby irrevocably waives, in connection with any
such action or Proceeding, any objection, including, without limitation, any
objection to the venue or based on the grounds of forum non conveniens, which it
may now or hereafter have to the bringing of any such action or Proceeding in
such respective jurisdictions. The Company hereby irrevocably consents to the
service of process of any of the aforementioned courts in any such action or
Proceeding by the mailing of copies thereof by registered or certified mail,
postage

                                       25
<PAGE>

prepaid, to it at its address as set forth herein. Nothing herein shall affect
the right of the Investors to serve process in any other manner permitted by Law
or to commence Proceedings or otherwise proceed against the Company in any other
jurisdiction.

7.9      EXTENSION; WAIVER.

         The parties may (a) extend the time for the performance of any of the
obligations or other acts of the other parties, (b) waive any inaccuracies in
the representations and warranties contained in this Agreement or in any
document delivered pursuant to this Agreement and (c) waive compliance with any
of the agreements or conditions contained in this Agreement. Any agreement on
the part of a party to any such extension or waiver shall be valid only if set
forth in an instrument in writing signed on behalf of such party, and any such
waiver shall not operate or be construed as a waiver of any subsequent breach by
the other party.

7.10     SEVERABILITY.

         It is the desire and intent of the parties that the provisions of this
Agreement and the other Equity Documents be enforced to the fullest extent
permissible under the Law and public policies applied in each jurisdiction in
which enforcement is sought. Accordingly, in the event that any provision of
this Agreement and the other Equity Documents would be held in any jurisdiction
to be invalid, prohibited or unenforceable for any reason, such provision, as to
such jurisdiction, shall be ineffective, without invalidating the remaining
provisions of this Agreement and the other Equity Documents or affecting the
validity or enforceability of such provision in any jurisdiction.
Notwithstanding the foregoing, if such provision could be more narrowly drawn so
as not be invalid, prohibited or unenforceable in such jurisdiction, it shall,
as to such jurisdiction, be so narrowly drawn, without invalidating the
remaining provisions of this Agreement and the other Equity Documents or
affecting the validity or enforceability of such provision in any other
jurisdiction.

7.11     INDEPENDENCE OF AGREEMENTS.

         All agreements and covenants hereunder shall be given independent
effect so that if a certain action or condition constitutes a default under a
certain agreement or covenant, the fact that such action or condition is
permitted by another agreement or covenant shall not affect the occurrence of
such default, unless expressly permitted under an exception to such covenant. In
addition, all representations and warranties hereunder shall be given
independent effect so that if a particular representation or warranty proves to
be incorrect or is breached, the fact that another representation or warranty
concerning the same or similar subject matter is correct or is not breached will
not affect the incorrectness of or a breach of the representation and warranty
first referred to in this sentence.

7.12     COUNTERPARTS.

         This Agreement may be executed in any number of counterparts, and each
such counterpart hereof shall be deemed to be an original instrument, but all
such counterparts together shall constitute but one agreement.

                                       26
<PAGE>

7.13     TERMINATION OF THE FINANCING DOCUMENTS.

         Upon the execution and delivery by each of the parties of this
Agreement and each of the other Equity Documents, and the consummation of the
transactions contemplated hereby and thereby, each of the Financing Documents
(other than Section 7(b) and 15 of the Note Purchase Agreement, which sections
shall remain in full force and effect) shall be terminated and of no further
force or effect.

7.14     ACTIONS OF THE SERIES A PREFERRED REPRESENTATIVE.

         A decision, act, consent or instruction of the Series A Preferred
Representative in respect of any action hereunder shall constitute a decision of
all Investors and shall be final, binding and conclusive upon each such Investor
and the Company may rely upon any decision, act, consent or instruction of the
Series A Preferred Representative hereunder as being the decision, act, consent
or instruction of each and every such Investor. Notice delivered to the Series A
Preferred Representative shall for all purposes constitute notice to all
Investors. The foregoing shall be binding upon all Investors and all transferees
and assignees thereof.

                                    * * * * *

                                       27
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Securities
Purchase Agreement as of the date first above written.

                           COMPANY:
                           --------

                           EXCHANGE APPLICATIONS, INC.

                           By: /s/ Andrew J. Frawley
                              ----------------------------------------
                           Name: Andrew J. Frawley
                           Title: Chief Executive Officer

                           INVESTORS:
                           ----------

                           INSIGHT CAPITAL PARTNERS IV, L.P.
                           By:   Insight Venture Associates IV, L.L.C., its
                                 General Partner

                           By: /s/ Deven Parekh
                              ----------------------------------------
                           Name: Devin Parekh
                           Title: Partner

                           INSIGHT CAPITAL PARTNERS (CAYMAN) IV, L.P.
                           By:   Insight Venture Associates IV, L.L.C., its
                                 General Partner

                           By: /s/ Deven Parekh
                              ----------------------------------------
                           Name: Devin Parekh
                           Title: Partner

                           INSIGHT CAPITAL PARTNERS IV (FUND B), L.P.
                           By:   Insight Venture Associates IV, L.L.C., its
                                 General Partner

                           By: /s/ Deven Parekh
                              ----------------------------------------
                           Name: Devin Parekh
                           Title: Partner

                                       28
<PAGE>

                           INSIGHT CAPITAL PARTNERS IV (CO-INVESTORS), L.P.
                           By:   Insight Venture Associates IV, L.L.C., its
                                 General Partner

                           By: /s/ Deven Parekh
                              ----------------------------------------
                           Name: Devin Parekh
                           Title: Partner

                                       29
<PAGE>

                                                                      SCHEDULE I

<TABLE><CAPTION>
                                                  INVESTORS
                                                  ---------

                                                       PREFERRED                                       NOTE
                    NAME AND ADDRESS                     SHARES          CASH PURCHASE PRICE          AMOUNT
                    ----------------                     ------          -------------------          ------
<S>                                                    <C>                  <C>                    <C>
INSIGHT CAPITAL PARTNERS IV, L.P.                      4,125,449            $4,047,659.59          $1,161,957.41
c/o InSight Capital Partners
527 Madison Avenue, 10th Floor
New York, New York 10022
Attention:  Deven Parekh

INSIGHT CAPITAL PARTNERS (CAYMAN) IV, L.P.               471,825              $462,928.25            $132,892.36
c/o InSight Capital Partners
527 Madison Avenue, 10th Floor
New York, New York 10022
Attention:  Deven Parekh

INSIGHT CAPITAL PARTNERS IV                               35,828               $35,152.31             $10,091.29
(FUND B), L.P.
c/o InSight Capital Partners
527 Madison Avenue, 10th Floor
New York, New York 10022
Attention:  Deven Parekh

INSIGHT CAPITAL PARTNERS IV (CO-INVESTORS), L.P.         692,543              $679,484.36            $195,058.94
c/o InSight Capital Partners
527 Madison Avenue, 10th Floor
New York, New York 10022
Attention:  Deven Parekh

                    TOTAL:                             5,325,645             5,225,224.51          $1,500,000.00
                                                                             ============          =============
</TABLE>

<PAGE>

                                  SCHEDULE 3.1
                                  ORGANIZATION

1.                EXCHANGE APPLICATIONS, INC.

                    Massachusetts

2.                CUSTOMER ANALYTICS, INC.

                    Massachusetts
                    Texas

3.                KNOWLEDGE STREAM PARTNERS, INC.

                    Illinois
                    Massachusetts

4.                GINO BORLAND INC. D/B/A EXSTATIC SOFTWARE

                    None

5.                EXCHANGE APPLICATIONS SECURITIES CORPORATION

                    None

6.                EXCHANGE APPLICATIONS FOREIGN SALES CORPORATION

                    None

7.                XCHANGE K.K.

                    None

8.                XCHANGE UK LTD.

                    None

9.                XCHANGE ASIA PACIFIC PTY LTD.

                    None

<PAGE>

                                  SCHEDULE 3.2
                                 CAPITALIZATION

As of January 9, 2001, the following is a summary of information concerning
options:

         COLUMN A             COLUMN B                      COLUMN C
         Options              Options                       Options Outstanding
         Reserved             Reserved for Future Grant

         12,185,499           7,577,823                     4,607,676

Payment and Registration Rights Agreement, dated as of December 28, 1999,
between the Company and Microstrategy Incorporated.

The Company has implemented an Option Exchange Program. Pursuant to such
Program, certain employees may elect to have certain of their options cancelled
in exchange for an agreement by the Company to grant new options six months
after the date of such cancellation. The deadline for participation in this
Program was December 16, 2000. As of that date, 3,108,036 options had been
returned by employees for cancellation. The 3,108,036 figure represents the
total options covered by the Program.

<PAGE>

                                  SCHEDULE 3.7
                    COMMISSION FILINGS; FINANCIAL STATEMENTS

                                      NONE.

<PAGE>

                                  SCHEDULE 3.11
                          INTELLECTUAL PROPERTY RIGHTS

                                      NONE.

<PAGE>

                                  SCHEDULE 3.12
                        LITIGATION AND OTHER PROCEEDINGS

                                      NONE.

<PAGE>

                                  SCHEDULE 3.14
                               REGISTRATION RIGHTS

         Payment and Registration Rights Agreement, dated as of December 28,
         1999, between the Company and Microstrategy Incorporated.

         Registration Rights Agreement, dated as of June 28, 2000, between the
         Company, and Steve Carpenter in his capacity as Shareholder
         Representative pursuant to the Agreement and Plan of Merger, dated as
         of June 6, 2000, among the Company, Customer Analytics Holdings, Inc.,
         CAH Acquisition Corporation, and certain shareholders of Customer
         Analytics listed on Exhibit A attached thereto.

         Agreement and Plan of Merger and Reorganization, dated as of March 20,
         2000, between Exchange Applications, Inc., KSP Acquisition Corp.,
         Knowledge Stream Partners, Inc., and Robert van der Hooning (Section
         5.2 "Registration Statement").

<PAGE>

                                                                       EXHIBIT A
                                                                       ---------

                          REGISTRATION RIGHTS AGREEMENT
                          -----------------------------

         See attached Exhibit 10.2 to this 8-K filed January 24, 2001.

<PAGE>

                                                                       EXHIBIT B
                                                                       ---------

                           CERTIFICATE OF DESIGNATION
                           --------------------------

         See attached Exhibit 4.1 to this 8-K filed January 24, 2001.

<PAGE>

                                                                       EXHIBIT C
                                                                       ---------

                                 FORM OF OPINION
                                 ---------------

                                January 10, 2001

To the Investors referred to below
c/o InSight Capital Partners
527 Madison Avenue, 10th Floor
New York, New York 10022
Attention: Deven Perekh

Re:      Exchange Applications, Inc.
         --------------------------

Ladies and Gentlemen:

We have acted as counsel to Exchange Applications, Inc., a Delaware corporation
(the "Company"), in connection with the execution and delivery by the Company of
the Securities Purchase Agreement, dated as of January 10, 2001 (the "Purchase
Agreement"), among the Company and the Investors listed on Schedule I thereto
(the "Investors"), and the transactions contemplated thereby. Capitalized terms
used herein and not otherwise defined shall have the respective meanings given
such terms in the Purchase Agreement. This opinion is rendered to you pursuant
to Section 5.1(e) Purchase Agreement.

As to all matters of fact (including factual conclusions and characterizations
and descriptions of purpose, intention or other state of mind), we have relied,
with your permission, entirely upon (a) the representations and warranties of
the Company set forth in the Purchase Agreement and each of the other
Transaction Documents (as defined below), (b) the representations and warranties
of the Investors set forth in the Purchase Agreement and (c) certificates of
certain of the officers of the Company and have assumed, without independent
inquiry, the accuracy of those representations, warranties, and certificates.
For purposes of our opinion rendered in paragraph 1 below, with respect to the
incorporation, organization, existence, qualification, or standing of the
Company, our opinion relies entirely upon and is limited by those certificates
of public officials attached hereto as Exhibit A.

Although we act generally as counsel to the Company, our representation is
limited to matters individually referred to us by the Company's management.
<PAGE>

In connection with this opinion, we have examined originals or copies of the
following documents:

         (i)      the Purchase Agreement;

         (ii)     the Registration Rights Agreement;

         (iii)    the Certificate of Incorporation of the Company (including the
                  Certificate of Designation) (collectively (the "Charter"),
                  certified by the Secretary of State of the State of Delaware
                  on January 10, 2001, and certified by an officer of the
                  Company as of the date hereof as being true, complete and
                  correct and in full force and effect;

         (iv)     the By-Laws of the Company (the "By-Laws") (the Charter and
                  the By-Laws together being referred to sometimes herein as the
                  "Governing Documents"), certified by an officer of the Company
                  as of the date hereof as being true, complete and correct and
                  in full force and effect;

         (v)      the certificate of certain officers of the Company, as of the
                  date hereof, as to certain actions taken by the Board of
                  Directors of the Company, and as to the titles, incumbency,
                  and specimen signatures of certain officers of the Company;
                  and

         (vi)     those certificates of certain public officials with respect to
                  the Company attached hereto as Exhibit A.

The documents specified in paragraphs (i) and (ii) above are referred to herein,
collectively, as the "Transaction Documents". We have examined the documents
listed in the preceding paragraph and such other corporate and public records
and agreements, instruments, certificates and other documents as we have deemed
necessary or appropriate for the purposes of this opinion.

We have assumed the genuineness of all signatures, the conformity to the
originals of all documents reviewed by us as copies, the authenticity and
completeness of all original documents reviewed by us in original or copy form
and the legal competence of each individual executing any document.

For purposes of this opinion, we have made such examination of law as we have
deemed necessary. This opinion is limited solely to the internal substantive
laws of the State of New York as applied by courts located in New York without
regard to choice of law, the federal laws of the United States of America
(except for Federal and state securities or blue sky laws, as to which we
express no opinion in this letter, other than as expressly set forth in
Paragraph 6 below), and the Delaware General Corporation Law as applied by
courts located in Delaware (the "DGCL"), and we express no
<PAGE>

opinion as to the laws of any other jurisdiction. No opinion is given herein as
to any contractual choice of law provision or otherwise as to the choice of law
or internal substantive rules of law that any court or other tribunal may apply
to the transactions contemplated by the Transaction Documents.

Our opinion is further subject to the following exceptions, qualifications and
assumptions, all of which we understand to be acceptable to you:

         (a)      We have assumed without any independent investigation that (i)
                  each party to the Transaction Documents, other than the
                  Company, at all times relevant thereto, is validly existing
                  and in good standing under the laws of the jurisdiction in
                  which it is organized, and is qualified to do business and in
                  good standing under the laws of each jurisdiction where such
                  qualification is required generally or necessary in order for
                  such party to enforce its rights under the Transaction
                  Documents, (ii) each party to the Transaction Documents, other
                  than the Company, at all times relevant thereto, had and has
                  the full power, authority and legal right under its
                  certificate of incorporation, partnership agreement, by-laws,
                  and other governing organizational documents, and the
                  applicable corporate, partnership, or other enterprise
                  legislation and other applicable laws, as the case may be, to
                  execute, deliver, and perform its obligations under, the
                  Transaction Documents and (iii) each party to the Transaction
                  Documents, other than the Company, has duly authorized,
                  executed, and delivered each of the Transaction Documents to
                  which it is a party.

         (b)      We have assumed without any independent investigation (i) that
                  the Company has received the agreed to and stated
                  consideration for the incurrence of the obligations applicable
                  to it under the terms of the Transaction Documents, (ii) that
                  each of the Transaction Documents is a valid and binding
                  obligation of each party thereto other than the Company, and
                  (iii) that each of the Transaction Documents is a valid and
                  binding obligation of the Company to the extent that laws
                  other than those of the State of New York are relevant thereto
                  (other than the laws of the United States of America, and the
                  DGCL, but only to the limited extent the same may be
                  applicable to the Company and relevant to our opinions
                  expressed below); and we express no opinion as to the status
                  under any fraudulent conveyance laws or fraudulent transfer
<PAGE>

                  laws of any of the obligations of the Company or any other
                  Person, whether under any of the Transaction Documents or
                  otherwise.

         (c)      The enforcement of any obligations of the Company or any other
                  Person, whether under any of the Transaction Documents or
                  otherwise, may be limited by bankruptcy, insolvency,
                  reorganization, moratorium, marshaling or other laws and rules
                  of law affecting the enforcement generally of creditors'
                  rights and remedies (including such as may deny giving effect
                  to waivers of debtors' or guarantors' rights).

         (d)      We express no opinion as to the enforceability of any
                  particular provision of any of the Transaction Documents
                  relating to remedies after default.

         (e)      We express no opinion as to the availability of any specific
                  or equitable relief of any kind.

         (f)      The enforcement of any of your rights may in all cases be
                  subject to an implied duty of good faith and fair dealing and
                  to general principles of equity (regardless of whether such
                  enforceability is considered in a proceeding at law or in
                  equity).

         (g)      We express no opinion as to the enforceability of any
                  particular provision of any of the Transaction Documents
                  relating to (i) waivers of rights to object to jurisdiction or
                  venue, or consents to jurisdiction or venue, (ii) waivers of
                  rights to (or methods of) service of process, or rights to
                  trial by jury, or other rights or benefits bestowed by
                  operation of law, (iii) waivers of any applicable defenses,
                  setoffs, recoupments, or counterclaims, (iv) waivers or
                  variations of provisions which are not capable of waiver or
                  variation under Sections 1-102(3), 9-501(3), or other
                  provisions of the Uniform Commercial Code ("UCC") of the State
                  of New York (the "New York UCC"), (v) exculpation or
                  exoneration clauses, indemnity clauses, and clauses relating
                  to releases or waivers of unmatured claims or rights,
                  including provisions for indemnification or for contribution
                  in lieu thereof, or (vi) the the payment of any premium,
                  liquidated damages, or other amount which may be held by any
                  court to be a "penalty" or a "forfeiture".

         (h)      When any opinion set forth below is given to our knowledge, or
                  to the best of our knowledge, or with reference to matters of
                  which we are aware or which are known to us, or with a similar
<PAGE>

                  qualification, that knowledge is limited to the actual
                  knowledge of the individual lawyers in this firm who have
                  participated directly and substantively in the specific
                  transactions to which this opinion relates and without any
                  special or additional investigation undertaken for the
                  purposes of this opinion.

         (i)      We express no opinion as to the effect of events occurring,
                  circumstances arising, or changes of law becoming effective or
                  occurring, after the date hereof on the matters addressed in
                  this opinion letter, and we assume no responsibility to inform
                  you of additional or changed facts, or changes in law, of
                  which we may become aware.

         (j)      We have assumed that neither the Company nor any Person acting
                  on behalf of the Company has engaged in any form of general
                  solicitation or general advertising in contravention of Rule
                  502(c) of Regulation D promulgated under the Securities Act of
                  1933, as amended.

Based upon the foregoing, and subject to the limitations and qualifications set
forth below, we are of the opinion that:

     1.  The Company is a corporation validly existing and in good standing
         under the laws of the State of Delaware. The Company is duly qualified
         (or, as applicable, is authorized to do business) and is in good
         standing, as applicable, in each case to the extent described in the
         applicable certificates of public officials attached hereto as Exhibit
         A in the jurisdictions listed therein.

     2.  The execution and delivery by the Company of each Transaction Document,
         and the performance by the Company of its obligations under each
         Transaction Document, are within the Company's corporate powers and
         have been duly authorized by all requisite corporate action on the part
         of the Company. The Company has duly executed and delivered each of the
         Transaction Documents.

     3.  Each of the Transaction Documents constitutes a legal, valid and
         binding agreement of the Company, enforceable against the Company in
         accordance with its respective terms.

     4.  The authorized capital stock of the Company consists of (i) 150,000,000
         shares of common stock, $.001 par value per share ("Common Stock"), and
         (ii) 10,000,000 shares of preferred stock, $0.001 par value per share,
         of
<PAGE>

         which 5,330,000 are designated as Series A Convertible Redeemable
         Preferred Stock. All issued and outstanding shares of Common Stock
         (other than those issued upon the exercise of stock options) are duly
         and validly issued, fully paid and nonassessable. The issuance, sale
         and delivery of the Preferred Shares in accordance with the terms of
         the Purchase Agreement, and the issuance and delivery of the shares of
         Common Stock issuable upon conversion of the Preferred Shares in
         accordance with the terms of the Charter have been duly authorized by
         all requisite corporate action on the part of the Company, and all such
         shares of Common Stock have been duly reserved for issuance. All of the
         Preferred Shares, when so issued, sold and delivered against payment
         therefor in accordance with the terms of the Purchase Agreement and
         such shares of Common Stock, when issued upon such conversion, will be
         duly and validly issued, fully paid and nonassessable.

     5.  The execution and delivery by the Company of each Transaction Document
         and the consummation of the transactions contemplated thereby, and
         compliance by the Company with the provisions thereof (i) will not, to
         the best of our knowledge, conflict with or result in a breach or
         default (or give rise to any right of termination, cancellation or
         acceleration) under any Company Contract, except for certain
         circumstances previously disclosed in writing to the Investors on
         December 15, 2000, (ii) will not violate any of the provisions of the
         Governing Documents of the Company or any law, statute, rule or
         regulation of the State of New York, or, to the best of our knowledge,
         any judgment, order, writ, injunction or decree of any court or other
         tribunal located in the State of New York, applicable to the Company or
         any of its properties or assets and (iii) to the best of our knowledge,
         will not result in the creation or imposition of any Lien on any
         property or asset of the Company. To the best of our knowledge, no
         consent or approval by, or any notification of or filing with, any
         court, public body or authority of the State of New York is required to
         be obtained or effected by the Company in connection with the
         execution, delivery and performance by the Company of each of the
         Transaction Documents or the consummation by the Company of the
         transactions contemplated thereby.

     6.  The offer, issuance and sale of the Preferred Shares at the Closing
         pursuant to the Purchase Agreement and, assuming the continuing
         accuracy of the representations and warranties of the Investors set
         forth in the Purchase Agreement and based solely on the current rules
         and interpretations of the Securities and Exchange Commission, the
         issuance of the Common Stock to the Investors upon conversion of the
<PAGE>

         Preferred Shares in accordance with the terms of the Charter do not
         require registration under the Securities Act of 1933, as amended.

This opinion is delivered  solely to you and for your benefit in connection with
the Purchase Agreement and the other Transaction Documents and may not be relied
upon by you for any other  purpose or  furnished or referred to, or relied upon,
by any other person or entity for any reason without our prior written consent.

Very truly yours,

BINGHAM DANA LLP
<PAGE>

                                                                       EXHIBIT A
                                                                       ---------

Certificate of Good Standing for the Company issued by the Secretary of State of
Delaware on January 8, 2001

Certificate of Good Standing for the Company issued by the Commonwealth of
Massachusetts on January 8, 2001EXHIBIT 10.2
                                                                    ------------

================================================================================

                          REGISTRATION RIGHTS AGREEMENT

                          DATED AS OF JANUARY 10, 2001,

                                      among

                          EXCHANGE APPLICATIONS, INC.,

                                       and

                                       the

                                    INVESTORS
                                IDENTIFIED HEREIN

================================================================================
<PAGE>

                                TABLE OF CONTENTS
                                -----------------
                                                                           Page
                                                                           ----

Section 1.   Definitions....................................................1

Section 2.   Required Registration..........................................3

Section 3.   Piggyback Registration.........................................4

Section 4.   Registrations on Form S-3......................................5

Section 5.   Holdback Agreement.............................................5

Section 6.   Preparation and Filing.........................................6

Section 7.   Expenses.......................................................8

Section 8.   Indemnification................................................9

Section 9.   Underwriting Agreement........................................11

Section 10.    Information.................................................11

Section 11.    Exchange Act Compliance.....................................11

Section 12.    No Conflict of Rights.......................................11

Section 13.    Termination.................................................12

Section 14.    Successors and Assigns......................................12

Section 15.    Assignment..................................................12

Section 16.    Entire Agreement............................................12

Section 17.    Notices.....................................................12

Section 18.    Modifications; Amendments; Waivers..........................14

Section 19.    Counterparts................................................14

Section 20.    Headings....................................................14

Section 21.    Governing Law...............................................14

<PAGE>

                  REGISTRATION RIGHTS AGREEMENT, dated as of January 10, 2001,
among EXCHANGE APPLICATIONS, INC., a Delaware corporation (the "Corporation"),
and INVESTORS (as herein defined).

                  The Investors own or have the right to purchase or otherwise
acquire shares of the capital stock of the Corporation. The Corporation and the
Investors deem it to be in their respective best interests to set forth the
rights of the Investors in connection with public offerings and sales of the
Common Stock. To that end, the Corporation and the Investors hereby set forth
this Agreement.

                  NOW, THEREFORE, in consideration of the premises and mutual
covenants and obligations hereinafter set forth, the Corporation and the
Investors hereby agree as follows:

Section 1.        Definitions.

                  As used in this Agreement, the following terms shall have the
following meanings:

         (a) "Business Day" means any day that is not a Saturday, Sunday, legal
holiday or other day on which banks are required to be closed in New York and
Massachusetts.

         (b) "Closing Date" shall have the meaning ascribed to such term in the
Securities Purchase Agreement.

         (c) "Commission" means the Securities and Exchange Commission or any
other Federal agency at the time administering the Securities Act.

         (d) "Common Stock" means the common stock, $.001 par value per share,
of the Corporation.

         (e) "Corporation" shall have the meaning ascribed to such term in the
Caption.

         (f) "Counsel" shall have the meaning ascribed to such term in Section
6(b).

         (g) "Exchange Act" means the Securities Exchange Act of 1934 or any
successor Federal statute, and the rules and regulations of the Commission
promulgated thereunder, all as the same shall be in effect from time to time.

         (h) "Information" shall have the meaning ascribed to such term in
Section 6(i).

         (i) "Inspectors" shall have the meaning ascribed to such term in
Section 6(i).

         (j) "Investors" means the Persons set forth on Schedule I and each
additional Person who shall execute a counterpart signature page hereto, and,
subject to Section 15 hereof, includes any successor to, or assignee or
transferee of, any such Person who or which agrees in
<PAGE>

writing to be treated as an Investor hereunder and to be bound by the terms and
comply with all applicable provisions hereof.

         (k) "Other Shares" means at any time those shares of Common Stock which
do not constitute Primary Shares or Registrable Shares.

         (l) "Person" means any individual, partnership, corporation, group,
trust, limited liability company or other legal entity.

         (m) "Primary Shares" means at any time the authorized but unissued
shares of Common Stock and shares of Common Stock held by the Corporation in its
treasury.

         (n) "Records" shall have the meaning ascribed to such term in Section
6(i).

         (o) "Registrable Shares" means, with respect to any Investor, the
shares of Common Stock held by such Investor, or the shares of Common Stock into
which shares of Series A Preferred held by such Investor are convertible, which
shares constitute Restricted Shares.

         (p) "Restricted Shares" means shares of Common Stock held by the
Investors issuable upon conversion of shares of the Series A Preferred which
have not been registered under the Securities Act. As to any particular
Restricted Shares, once issued, such Restricted Shares shall cease to be
Restricted Shares when (i) they have been registered under the Securities Act,
the registration statement in connection therewith has been declared effective
and they have been disposed of pursuant to such effective registration
statement, (ii) they are eligible to be sold or distributed pursuant to Rule 144
within any consecutive three-month period (including, without limitation, Rule
144(k)) without volume limitations, or (iii) they shall have ceased to be
outstanding.

         (q) "Registration Statement" means any registration statement of the
Corporation which covers any of the Registrable Shares, and all amendments and
supplements to any such Registration Statement, including post-effective
amendments, in each case including the prospectus contained therein, all
exhibits thereto and all material incorporated by reference therein

         (r) "Requisite Investors" means those Investors who hold in the
aggregate in excess of 50% of the Registrable Shares held by all Investors at
the time in question.

         (s) "Rule 144" means Rule 144 promulgated under the Securities Act or
any successor rule thereto or any complementary rule thereto (such as Rule
144A).

         (t) "Securities Act" means the Securities Act of 1933 or any successor
Federal statute, and the rules and regulations of the Commission thereunder, all
as the same shall be in effect from time to time.

         (u) "Securities Purchase Agreement" means the Securities Purchase
Agreement dated the date hereof, among the Corporation and the Investors party
thereto.

                                       2
<PAGE>

         (v) "Series A Preferred" means the Series A Convertible Redeemable
Preferred Stock, $.001 par value per share of the Corporation.

         (w) "Series A Preferred Representative" means Insight Venture
Associates IV, L.L.C., or any successor thereto approved by the Corporation
(which approval shall not be unreasonably withheld).

Section 2.        Required Registration.

         (a) From and after the 90th day following the Closing Date, if the
Requisite Investors shall in writing state that such holders desire to sell
Registrable Shares in the public securities markets and request the Corporation
to effect the registration under the Securities Act of Registrable Shares, the
Corporation shall promptly use commercially reasonable efforts to effect the
registration under the Securities Act of the Registrable Shares which the
Corporation has been so requested by the Requisite Investors to register.

         (b) Anything contained in Section 2(a) to the contrary notwithstanding,
the Corporation shall not be obligated to effect any registration under the
Securities Act pursuant to Section 2(a) except in accordance with the following
provisions:

                  (i) The Corporation shall not be obligated to use commercially
         reasonable efforts to file and cause to become effective (A) more than
         two Registration Statements initiated pursuant to this Section 2(a);
         provided, however, that if the Investors were unable to sell at least
         90% of the Registrable Shares requested to be included in the last
         registration initiated by such group of Investors pursuant to Section
         2(a) as a result of an underwriter's cutback, then additional
         registrations shall be added to this Section 2(b) until the foregoing
         condition is satisfied for such initiating group of Investors, or (B)
         any Registration Statement during any period in which any other
         Registration Statement (other than on Form S-4 or Form S-8 promulgated
         under the Securities Act or any successor forms thereto) pursuant to
         which Primary Shares or Other Shares are to be or were sold has been
         filed and not withdrawn or has been declared effective within the prior
         90 days.

                  (ii) The Corporation may delay the filing or effectiveness of
         any Registration Statement for a period of up to 90 days after the date
         of a request for registration pursuant to Section 2(a), if at the time
         of such request (i) the Corporation is engaged, or has fixed plans to
         engage within 90 days of the time of such request, in a firm commitment
         underwritten public offering of Primary Shares in which the Investors
         holding Registrable Shares may include such Registrable Shares pursuant
         to Section 3 or (ii) the Corporation reasonably determines that such
         registration and offering would interfere with any material transaction
         involving the Corporation; provided, however, that the Corporation may
         only delay the filing or effectiveness of a registration statement
         pursuant to this Section 2(b) for a total of 90 days after the date of
         a request for registration.

                  (iii) With respect to any registration pursuant to this
         Section 2(a), the Corporation shall give notice of such registration to
         the Investors who do not request

                                       3
<PAGE>

         registration hereunder and to the holders of all Other Shares which are
         entitled to registration rights and the Corporation may include in such
         registration any Primary Shares or Other Shares; provided, however,
         that if the managing underwriter advises the Corporation that the
         inclusion of all Registrable Shares, Primary Shares and/or Other Shares
         proposed to be included in such registration would interfere with the
         successful marketing (including pricing) of the Registrable Shares
         proposed to be included in such registration, then the number of
         Registrable Shares, Primary Shares and/or Other Shares proposed to be
         included in such registration shall be included in the following order:

                    (A) first, pro rata among (x) the Registrable Shares
               requested by the Investors to be included in such registration
               (or, if necessary, such Registrable Shares pro rata among the
               holders thereof based upon the number of Registrable Shares
               requested to be registered by each such Investor) and (y) the
               Other Shares (only to the extent required by an effective
               Registration Rights Agreement entered into prior to the date
               hereof between the Corporation and the holders of such Other
               Shares);

                    (B) second, the Primary Shares; and

                    (C) third, the Other Shares which are entitled to
               registration rights.

         (c) A requested registration under Section 2(a) may be rescinded as to
all of the Registrable Shares requested to be so registered prior to such
registration being declared effective by the Commission by written notice from
such Requisite Investors to the Corporation; provided, however, that such
rescinded registration shall not be deemed a Registration Statement initiated
pursuant to Section 2(a) for the purpose of Section 2(b)(i)(A) if the
Corporation shall have been reimbursed for all out-of-pocket expenses incurred
by the Corporation in connection with such rescinded registration.

Section 3.        Piggyback Registration.

         (a) From and after the 90th day following the Closing Date, if the
Corporation at any time proposes for any reason to register Primary Shares or
Other Shares under the Securities Act (other than on Form S-4 or Form S-8
promulgated under the Securities Act or any successor forms thereto), it shall
give written notice to the Investors of its intention to so register such
Primary Shares or Other Shares at least 30 days before the initial filing of
such Registration Statement and, upon the written request, delivered to the
Corporation within 20 days after delivery of any such notice by the Corporation,
of the Investors to include in such registration Registrable Shares (which
request shall specify the number of Registrable Shares proposed to be included
in such registration and shall state that the Investors desire to sell such
Registrable Shares in the public securities markets), the Corporation shall use
commercially reasonable efforts to cause all such Registrable Shares to be
included in such registration on the same terms and conditions as the securities
otherwise being sold in such registration; provided, however, that if the
managing underwriter advises the Corporation that the inclusion of all
Registrable Shares requested to be included in such registration would interfere
with the successful marketing (including pricing) of the Primary Shares or Other
Shares proposed to be registered by the

                                       4
<PAGE>

Corporation, then the number of Primary Shares, Registrable Shares and Other
Shares proposed to be included in such registration shall be included in the
following order:

                  (i) first, pro rata among (x) the Corporation and the holders
         of Other Shares, as the case may be, and (y) Investors requesting their
         Registrable Shares be included in such registration (or, if necessary,
         such Registrable Shares pro rata among the holders thereof based upon
         the number of Registrable Shares requested to be registered by each
         such holder); and

                  (ii) second, the Other Shares which are entitled to
         registration rights and are held by holders who are not initiating such
         registration under this Section 3.

         (b) The number of requests permitted by the Investors pursuant to this
Section 3 shall be unlimited.

Section 4.        Registrations on Form S-3.

                  Anything contained in Section 2 to the contrary
notwithstanding, from and after the 90th day following the Closing Date, at such
time as the Corporation shall have qualified for the use of Form S-3 promulgated
under the Securities Act or any successor form thereto, each Investor holding
Registrable Shares then outstanding shall have the right to request in writing
that the Corporation effect the registration of Registrable Shares on Form S-3
or such successor form, which request or requests shall (i) specify the number
of Registrable Shares intended to be sold or disposed of and the holders thereof
and (ii) state the intended method of disposition of such Registrable Shares.
The Corporation shall use commercially reasonable efforts to promptly effect the
registration under the Securities Act of the Registrable Shares so requested to
be registered. A requested registration on Form S-3 or any such successor form
in compliance with this Section 4 shall not count as a registration statement
initiated pursuant to Section 2(a) for purposes of Section 2 (b)(i)(A) and,
except as otherwise expressly provided in this Section 4, shall otherwise be
subject to Section 2. The number of requests permitted by the Investors pursuant
to this Section 4 shall be unlimited; provided, however, that the Investors
shall not be permitted to effect more than one registration pursuant to this
Section 4 during any 180-day period.

Section 5.        Holdback Agreement.

         (a) If the Corporation at any time shall register shares of Common
Stock pursuant to Section 2, 3, or 4 hereof, no holder of the Registrable Shares
so registered shall sell publicly such Registrable Shares before the 180th day
following the Closing Date.

         (b) If the Corporation at any time shall register shares of Common
Stock under the Securities Act (including any registration pursuant to Sections
2, 3 or 4 hereof) for sale to the public in an underwritten offering, no
Investor shall sell, make any short sale of, grant any option for the purchase
of, or otherwise dispose of, any Registrable Shares (other than those shares of
Common Stock included in such registration pursuant to Sections 2, 3 or 4
hereof) without the prior written consent of the Corporation, for a period as
shall be determined by the relevant managing underwriters, which period shall
not last more than 180 days after the effective date of such Registration
Statement. From and after the date hereof, the Corporation shall use

                                       5
<PAGE>

commercially reasonable efforts to obtain the agreement of any Person permitted
to sell shares of stock in a registration to be bound by and to comply with this
Section 5 (or similar provisions of a separate agreement) as if such Person were
an Investor.

         (c) If the Corporation at any time pursuant to Sections 2 or 3 of this
Agreement shall register under the Securities Act Registrable Shares held by the
Investors for sale to the public pursuant to an underwritten offering, the
Corporation shall not effect any public sale or distribution of securities
similar to those being registered, or any securities convertible into or
exercisable or exchangeable for such securities, for such period as shall be
determined by the Corporation and the managing underwriters, which period shall
not be less than 5 days.

Section 6.        Preparation and Filing.

                  If and whenever the Corporation is under an obligation
pursuant to the provisions of this Agreement to effect the registration of any
Registrable Shares, the Corporation shall, as expeditiously as practicable:

         (a) use commercially reasonable efforts to cause a Registration
Statement that registers such Registrable Shares to become and remain effective
for a period of 180 days or until all of such Registrable Shares have been
disposed of (if earlier);

         (b) furnish, at least five Business Days before filing a Registration
Statement that registers such Registrable Shares, a prospectus relating thereto
or any amendments or supplements relating to such a Registration Statement or
prospectus, to one counsel selected by the Investors ("Counsel") copies of all
such documents proposed to be filed (it being understood that such five-Business
Day period need not apply to amendments or successive drafts of the same
document proposed to be filed so long as such amendments or successive drafts
are supplied to Counsel in advance of the proposed filing by a period of time
that is customary and reasonable under the circumstances);

         (c) prepare and file with the Commission such amendments and
supplements to such registration statement and the prospectus used in connection
therewith as may be necessary to keep such Registration Statement effective for
at least an additional period of 90 days or until all of such Registrable Shares
have been disposed of (if earlier) and to comply with the provisions of the
Securities Act with respect to the sale or other disposition of such Registrable
Shares;

         (d) promptly notify Counsel in writing (i) of the receipt by the
Corporation of any notification with respect to any comments by the Commission
with respect to such registration statement or prospectus or any amendment or
supplement thereto or any request by the Commission for the amending or
supplementing thereof or for additional information with respect thereto, (ii)
of the receipt by the Corporation of any notification with respect to the
issuance by the Commission of any stop order suspending the effectiveness of
such registration statement or prospectus or any amendment or supplement thereto
or the initiation or threatening of any proceeding for that purpose and (iii) of
the receipt by the Corporation of any notification with respect to the
suspension of the qualification of such Registrable Shares for sale in any
jurisdiction or the initiation or threatening of any proceeding for such
purposes;

                                       6
<PAGE>

         (e) use its best efforts to register or qualify such Registrable Shares
under such other securities or blue sky laws of such jurisdictions as the
holders of the Registrable Shares reasonably request and do any and all other
acts and things which may be reasonably necessary or advisable to enable such
holders to consummate the disposition in such jurisdictions of such holders'
Registrable Shares; provided, however, that the Corporation will not be required
to qualify generally to do business, subject itself to general taxation or
consent to general service of process in any jurisdiction where it would not
otherwise be required to do so but for this paragraph (e);

         (f) furnish to the holders of such Registrable Shares such number of
copies of a summary prospectus, if any, or other prospectus, including a
preliminary prospectus, in conformity with the requirements of the Securities
Act, and such other documents as such holders may reasonably request in order to
facilitate the public sale or other disposition of such Registrable Shares;

         (g) without limiting subsection (e) above, use its best efforts to
cause such Registrable Shares to be registered with or approved by such other
governmental agencies or authorities of the United States as may be necessary by
virtue of the business and operations of the Corporation to enable the holders
of such Registrable Shares to consummate the disposition of such Registrable
Shares;

         (h) notify the holders of such Registrable Shares on a timely basis at
any time when a prospectus relating to such Registrable Shares is required to be
delivered under the Securities Act within the appropriate period mentioned in
subparagraph (a) of this Section 6, of the happening of any event as a result of
which the prospectus included in such Registration Statement, as then in effect,
includes an untrue statement of a material fact or omits to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading in light of the circumstances then existing and, at the request
of such holders, prepare and furnish to such holders a reasonable number of
copies of a supplement to or an amendment of such prospectus as may be necessary
so that, as thereafter delivered to the offerees of such shares, such prospectus
shall not include an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading in light of the circumstances then existing;

         (i) make available upon reasonable notice and during normal business
hours, for inspection by any underwriter participating in any disposition
pursuant to such Registration Statement and any attorney, accountant or other
agent retained by the underwriter (the "Inspectors"), all pertinent financial
and other records, pertinent corporate documents and properties of the
Corporation (collectively, the "Records"), as shall be reasonably necessary to
enable them to exercise their due diligence responsibility, and cause the
Corporation's officers, directors and employees to supply all information
(together with the Records, the "Information") reasonably requested by any such
Inspector in connection with such Registration Statement. Any of the Information
which the Corporation determines in good faith to be confidential, and of which
determination the Inspectors are so notified, shall not be disclosed by the
Inspectors unless (i) the disclosure of such Information is necessary to avoid
or correct a misstatement or omission in the registration statement, (ii) the
release of such Information is ordered pursuant to a subpoena or other order
from a court of competent jurisdiction or (iii) such Information has been

                                       7
<PAGE>

made generally available to the public, and the Investors agree that they will,
upon learning that disclosure of such Information is sought in a court of
competent jurisdiction, give notice to the Corporation and allow the
Corporation, at the Corporation's expense, to undertake appropriate action to
prevent disclosure of the Information deemed confidential;

         (j) if required by the underwriters, use commercially reasonable
efforts to obtain from its independent certified public accountants "cold
comfort" letters in customary form and at customary times and covering matters
of the type customarily covered by cold comfort letters;

         (k) if required by the underwriters, use commercially reasonable
efforts to obtain from its counsel an opinion or opinions in customary form;

         (l) provide a transfer agent and registrar (which may be the same
entity and which may be the Corporation) for such Registrable Shares;

         (m) issue to any underwriter to which the holders of such Registrable
Shares may sell shares in such offering certificates evidencing such Registrable
Shares;

         (n) use commercially reasonable efforts to qualify such Registrable
Shares for listing on the Nasdaq Stock Market or such other national securities
exchange on which the Corporation shall from time to time list its securities;

         (o) otherwise use commercially reasonable efforts to comply with all
applicable rules and regulations of the Commission; and

         (p) subject to all the other provisions of this Agreement, use
commercially reasonable efforts to take all other commercially reasonable steps
necessary to effect the registration of such Registrable Shares contemplated
hereby.

                  Each holder of the Registrable Shares upon receipt of any
notice from the Corporation of any event of the kind described in Section 6(h)
hereof, shall forthwith discontinue disposition of the Registrable Shares
pursuant to the registration statement covering such Registrable Shares until
such holder's receipt of the copies of the supplemented or amended prospectus
contemplated by Section 6(h) hereof, and, if so directed by the Corporation,
such holder shall deliver to the Corporation all copies, other than permanent
file copies then in such holder's possession, of the prospectus covering such
Registrable Shares at the time of receipt of such notice.

Section 7.        Expenses.

                  All expenses incurred by the Corporation in complying with
Section 6, including, without limitation, all registration and filing fees
(including all expenses incident to filing with the National Association of
Securities Dealers, Inc.), fees and expenses of complying with securities and
blue sky laws, printing expenses, fees and expenses of the Corporation's counsel
and accountants and reasonable fees and expenses of Counsel (which fees and
expenses of Counsel shall not exceed $20,000) shall be paid by the Corporation.

                                       8
<PAGE>

Section 8.        Indemnification.

         (a) In connection with any registration of any Registrable Shares under
the Securities Act pursuant to this Agreement, the Corporation shall indemnify
and hold harmless the holders of Registrable Shares, each underwriter, broker or
any other Person acting on behalf of the holders of Registrable Shares, and each
other Person, if any, who controls any of the foregoing Persons within the
meaning of the Securities Act against any losses, claims, damages or
liabilities, joint or several (or actions in respect thereof), to which any of
the foregoing Persons may become subject under the Securities Act or otherwise,
insofar as such losses, claims, damages or liabilities (or actions in respect
thereof) arise out of or are based upon an untrue statement or allegedly untrue
statement of a material fact contained in the registration statement under which
such Registrable Shares were registered under the Securities Act, any
preliminary prospectus or final prospectus contained therein or otherwise filed
with the Commission, any amendment or supplement thereto or any document
incident to registration or qualification of any Registrable Shares, or arise
out of or are based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading or, with respect to any prospectus, necessary to make the
statements therein in light of the circumstances under which they were made not
misleading, or any violation by the Corporation of the Securities Act or state
securities or blue sky laws applicable to the Corporation and relating to action
or inaction required of the Corporation in connection with such registration or
qualification under such state securities or blue sky laws; and shall reimburse
the holders of Registrable Shares, such underwriter, such broker or such other
Person acting on behalf of the holders of Registrable Shares and each such
controlling Person for any legal or other expenses reasonably incurred by any of
them in connection with investigating or defending any such loss, claim, damage,
liability or action; provided, however, that the Corporation shall not be liable
in any such case to the extent that any such loss, claim, damage, liability or
action (including any legal or other expenses incurred) arises out of or is
based upon an untrue statement or allegedly untrue statement or omission or
alleged omission made in said registration statement, preliminary prospectus,
final prospectus, amendment, supplement or document incident to registration or
qualification of any Registrable Shares in reliance upon and in conformity with
written information furnished to the Corporation by the holders of Registrable
Shares or their counsel or underwriter specifically for use in the preparation
thereof; provided further, however, that the foregoing indemnity agreement is
subject to the condition that, insofar as it relates to any untrue statement,
allegedly untrue statement, omission or alleged omission made in any preliminary
prospectus but eliminated or remedied in the final prospectus (filed pursuant to
Rule 424 of the Securities Act), such indemnity agreement shall not inure to the
benefit of any Investor, underwriter, broker or other Person acting on behalf of
holders of the Restricted Shares, from whom the Person asserting any loss,
claim, damage, liability or expense purchased the Restricted Shares which are
the subject thereof, if a copy of such final prospectus had been made available
to such Person and such Investor, underwriter, broker or other Person acting on
behalf of holders of the Registrable Shares and such final prospectus was not
delivered to such Person with or prior to the written confirmation of the sale
of such Registrable Shares to such Person.

         (b) In connection with any registration of Registrable Shares under the
Securities Act pursuant to this Agreement, each holder of Registrable Shares
shall severally and not jointly indemnify and hold harmless (in the same manner
and to the same extent as set forth in the

                                       9
<PAGE>

preceding paragraph of this Section 8) the Corporation, each director of the
Corporation, each officer of the Corporation who shall sign such registration
statement, each underwriter, broker or other Person acting on behalf of the
holders of Registrable Shares and each Person who controls any of the foregoing
Persons within the meaning of the Securities Act with respect to any statement
or omission from such registration statement, any preliminary prospectus or
final prospectus contained therein or otherwise filed with the Commission, any
amendment or supplement thereto or any document incident to registration or
qualification of any Registrable Shares if such statement or omission was made
in reliance upon and in conformity with written information furnished to the
Corporation or such underwriter specifically for use in connection with the
preparation of such registration statement, preliminary prospectus, final
prospectus, amendment, supplement or document; provided, however, that the
maximum amount of liability in respect of such indemnification shall be limited,
in the case of each seller of Registrable Shares to an amount equal to the net
proceeds actually received by such seller from the sale of Registrable Shares
effected pursuant to such registration.

         (c) Promptly after receipt by an indemnified party of notice of the
commencement of any action involving a claim referred to in the preceding
paragraphs of this Section 8, such indemnified party will, if a claim in respect
thereof is made against an indemnifying party, give written notice to the latter
of the commencement of such action. The failure of any indemnified party to
notify an indemnifying party of any such action shall not (unless such failure
shall have a material adverse effect on the indemnifying party) relieve the
indemnifying party from any liability in respect of such action that it may have
to such indemnified party on account of this Section 8. In case any such action
is brought against an indemnified party, the indemnifying party will be entitled
to participate in and to assume the defense thereof, jointly with any other
indemnifying party similarly notified to the extent that it may wish, with
counsel reasonably satisfactory to such indemnified party, and after notice from
the indemnifying party to such indemnified party of its election so to assume
the defense thereof, the indemnifying party shall not be responsible for any
legal or other expenses subsequently incurred by the indemnified party in
connection with the defense thereof; provided, however, that if any indemnified
party shall have reasonably concluded that there may be one or more legal or
equitable defenses available to such indemnified party which are additional to
or conflict with those available to the indemnifying party, or that such claim
or litigation involves or could have an effect upon matters beyond the scope of
the indemnity agreement provided in this Section 8, the indemnifying party shall
not have the right to assume the defense of such action on behalf of such
indemnified party (but shall have the right to participate therein with counsel
of its choice) and such indemnifying party shall reimburse such indemnified
party and any Person controlling such indemnified party for that portion of the
fees and expenses of any counsel retained by the indemnified party which is
reasonably related to the matters covered by the indemnity agreement provided in
this Section 8. If the indemnifying party is not entitled to, or elects not to,
assume the defense of a claim, it will not be obligated to pay the fees and
expenses of more than one counsel with respect to such claim.

         (d) If the indemnification provided for in this Section 8 is held by a
court of competent jurisdiction to be unavailable to an indemnified party with
respect to any loss, claim, damage, liability or action referred to herein, then
the indemnifying party, in lieu of indemnifying such indemnified party
hereunder, shall contribute to the amounts paid or payable by such indemnified
party as a result of such loss, claim, damage, liability or action in such

                                       10
<PAGE>

proportion as is appropriate to reflect the relative fault of the indemnifying
party on the one hand and of the indemnified party on the other in connection
with the statements or omissions which resulted in such loss, claim, damage,
liability or action as well as any other relevant equitable considerations. The
relative fault of the indemnifying party and of the indemnified party shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the indemnifying party or by
the indemnified party and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.
The parties agree that it would not be just and equitable if contribution
pursuant hereto were determined by pro rata allocation or by any other method or
allocation which does not take account of the equitable considerations referred
to herein. No Person guilty of fraudulent misrepresentation shall be entitled to
contribution from any Person.

Section 9.        Underwriting Agreement.

                  Notwithstanding the provisions of Sections 5, 6, 7 and 8, to
the extent that the Investors shall enter into an underwriting or similar
agreement, which agreement contains provisions covering one or more issues
addressed in such Sections, the provisions contained in such agreement
addressing such issue or issues shall control; provided, however, that any such
agreement to which the Corporation is not a party shall not be binding upon the
Corporation. No holder may participate in any underwritten registration
hereunder unless such holder (a) agrees to sell such holder's securities on the
basis provided in any underwriting arrangements and (b) completes and executes
all questionnaires, powers of attorney, indemnities, underwriting agreements and
other documents reasonably and customarily required under the terms of such
underwriting arrangements.

Section 10.       Information.

                  Each Investor shall furnish to the Corporation such written
information regarding such Person and the distribution proposed by such Person
as the Corporation may reasonably request in writing and as shall be reasonably
required in connection with any registration, qualification or compliance
referred to in this Agreement.

Section 11.       Exchange Act Compliance.

                  The Corporation shall use commercially reasonable efforts to
comply with all of the reporting requirements of the Exchange Act applicable to
it (whether or not it shall be required to do so) and to comply with all other
public information reporting requirements of the Commission which are conditions
to the availability of Rule 144 for the sale of the Common Stock. The
Corporation shall cooperate with the Investors supplying such information as may
be necessary for the Investors to complete and file any information reporting
forms presently or hereafter required by the Commission as a condition to the
availability of Rule 144.

Section 12.       No Conflict of Rights.

                  The Corporation shall not, after the date hereof, grant any
registration rights which conflict with or impair the registration rights
granted hereby.

                                       11
<PAGE>

Section 13.       Termination.

                  This Agreement shall terminate and be of no further force or
effect when there shall no longer be any Registrable Shares outstanding.

Section 14.       Successors and Assigns.

                  This Agreement shall bind and inure to the benefit of the
Corporation and the Investors and, subject to Section 15, the respective
successors and assigns of the Corporation and the Investors.

Section 15.       Assignment; Series A Preferred Representative.

         (a) Each Investor may assign its rights hereunder to (i) its limited
partners or any Affiliate of such Investor or (ii) any purchaser or transferee
from such Investor of Restricted Shares with the consent of the Corporation;
provided, however, that any such purchaser or transferee shall, as a condition
to the effectiveness of such assignment, be required to execute a counterpart to
this Agreement agreeing to be treated as an Investor, whereupon such purchaser
or transferee shall have the benefits of, and shall be subject to the
restrictions contained in, this Agreement as if such purchaser or transferee had
originally been a party hereto and was originally included in the definition of
an Investor herein.

         (b) A decision, act, consent or instruction of the Series A Preferred
Representative in respect of any action hereunder shall constitute a decision of
all holders of Registrable Shares and shall be final, binding and conclusive
upon each such holder of Registrable Shares and the Corporation may rely upon
any decision, act consent or instruction of the Series A Preferred
Representative hereunder as being the decision, act, consent or instruction of
each and every such holder of Registrable Shares. Notice delivered to the Series
A Preferred Representative shall for all purposes constitute notice of all
holders of Registrable Shares. The foregoing shall be binding upon all holders
of Registrable Shares and all transferees and assignees thereof.

Section 16.       Entire Agreement.

                  This Agreement and the other writings referred to herein or
therein or delivered pursuant hereto or thereto, contain the entire agreement
among the Investors and the Corporation with respect to the subject matter
hereof and supersede all prior and contemporaneous arrangements or
understandings with respect thereto, all of which are hereby automatically
terminated in their entirety and of no further force or effect, without any
action by the parties thereto.

Section 17.       Notices.

                  All notices, requests, consents and other communications
hereunder to any party shall be deemed to be sufficient if contained in a
written instrument delivered in person or sent by telecopy,
nationally-recognized overnight courier or first class registered or certified
mail, return receipt requested, postage prepaid, addressed to such party at the
address set forth below or such other address as may hereafter be designated in
writing by such party to the other parties:

                                       12
<PAGE>

                  (i) if to the Corporation, to:

                      Exchange Applications, Inc.
                      89 South Street
                      Boston, Massachusetts 02111
                      Attention:  Andrew Frawley
                      Telephone: (617) 737-2244
                      Telecopy:  (617) 443-9143

                  with a copy to:

                      Bingham Dana, LLP
                      399 Park Avenue
                      New York, NY 10022-4689
                      Attention: Neil W. Townsend
                      Telephone: (212) 318-7722
                      Telecopy: (212) 752-5378

                  (ii) if to the Investors, to:

                      InSight Capital Partners
                      527 Madison Avenue, 10th Floor
                      New York, N.Y. 10022
                      Attention:  Deven Parekh
                      Telephone:  (212) 230-9200
                      Telecopy:  (212) 230-9272

                  with a copy to:

                      O'Sullivan Graev & Karabell, LLP
                      30 Rockefeller Plaza
                      New York, New York  10112
                      Attention:    Ilan S. Nissan, Esq.
                      Telephone:  (212) 408-2400
                      Telecopy:  (212) 408-2420

All such notices, requests, consents and other communications shall be deemed to
have been delivered (a) in the case of personal delivery or delivery by
telecopy, on the date of such delivery, (b) in the case of dispatch by
nationally-recognized overnight courier, on the next Business Day following such
dispatch and (c) in the case of mailing, on the third Business Day after the
posting thereof.

                                       13
<PAGE>

Section 18.       Modifications; Amendments; Waivers.

                  The terms and provisions of this Agreement may not be modified
or amended, nor may any provision be waived, except pursuant to a writing signed
by the Corporation and the Investors.

Section 19.       Counterparts.

                  This Agreement may be executed in any number of counterparts,
and each such counterpart hereof shall be deemed to be an original instrument,
but all such counterparts together shall constitute but one agreement.

Section 20.       Headings.

                  The headings of the various sections of this Agreement have
been inserted for convenience of reference only and shall not be deemed to be a
part of this Agreement.

Section 21.       Governing Law.

                  This Agreement shall be governed by and construed in
accordance with the laws of the State of New York applicable to contracts made
and to be performed wholly therein.

                                       14
<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have executed this
Registration Rights Agreement on the date first written above.

                                  CORPORATION:
                                  ------------

                                  EXCHANGE APPLICATIONS, INC.

                                  By:  /s/ Andrew J. Frawley
                                       -----------------------
                                  Name: Andrew J. Frawley
                                  Title: Chief Executive Officer

                                  INVESTORS:
                                  ----------

                                  INSIGHT CAPITAL PARTNERS IV, L.P.

                                  By:  Insight Venture Associates IV, L.L.C.,
                                       its general partner

                                  By:   /s/ Deven Parekh
                                       -----------------------
                                        Name: Deven Parekh
                                        Title: Partner

                                  INSIGHT CAPITAL PARTNERS (CAYMAN) IV, L.P.

                                  By:  Insight Venture Associates IV, L.L.C.,
                                       its general partner

                                  By:   /s/ Deven Parekh
                                       -----------------------
                                        Name: Deven Parekh
                                        Title: Partner

                                       15
<PAGE>

                                  INSIGHT CAPITAL PARTNERS IV (FUND B), L.P.

                                  By:  Insight Venture Associates IV, L.L.C.,
                                       its general partner

                                  By:   /s/ Deven Parekh
                                       -----------------------
                                        Name: Deven Parekh
                                        Title: Partner

                                  INSIGHT CAPITAL PARTNERS IV (CO-INVESTORS),
                                  L.P.

                                  By:  Insight Venture Associates IV, L.L.C.,
                                       its general partner

                                  By:   /s/ Deven Parekh
                                       -----------------------
                                        Name: Deven Parekh
                                        Title: Partner

                                       16
<PAGE>

                                   SCHEDULE 1

                                    Investors
                                    ---------

InSight Capital Partners IV, L.P.
InSight Capital Partners (Cayman) IV, L.P.
InSight Capital Partners IV (Fund B), L.P.
InSight Capital Partners IV (Co-investors), L.P.

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