Document:

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                                                                    EXHIBIT 10.1

                              TRANSACTION AGREEMENT

                          dated as of September 9, 2002

                                     between

                                  ENGAGE, INC.,

                                CMGI (UK) LIMITED

                                       and

                                   CMGI, INC.

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                              TRANSACTION AGREEMENT

         This Transaction Agreement (this "Agreement" or the "Transaction
Agreement") is made and entered into as of September 9, 2002 among Engage, Inc.,
a Delaware corporation ("Engage"), CMGI (UK) Limited ("CMGI (UK) Limited") and
CMGI, Inc., a Delaware corporation ("CMGI").

         WHEREAS, CMGI and Engage wish to enter into a series of transactions
whereby simultaneously with the execution of this Agreement, CMGI is
transferring Note #1 (as defined in Section 1.01 herein) to Engage for immediate
cancellation and extinguishment under which certain Debt (as defined herein) is
outstanding in exchange for issuance and delivery to CMGI by Engage of a Warrant
in substantially the form attached hereto as Exhibit A (the "Warrant");

         WHEREAS, ten minutes following the closing of the transactions
described in the recital immediately above, (i) Engage is issuing to CMGI a $2.0
million secured promissory note in substantially the form attached hereto as
Exhibit B (the "Note"); (ii) CMGI is transferring Note #2 and Note #3 (each as
defined in Section 1.01 herein) to Engage for immediate cancellation and
extinguishment under which certain Debt is outstanding; (iii) Engage is paying
to CMGI $1,015,821.99 by wire transfer of immediately available funds; (iv)
Engage and CMGI are entering into a Guarantee and Security Agreement (the
"Security Agreement") and a Intellectual Property Security Agreement
substantially in the forms attached hereto as Exhibits C-1 and C-2
(collectively, the "Security Agreements"); (v) Engage and CMGI are entering into
the Amended and Restated Investor Rights Agreement in the form attached hereto
as Exhibit D (the "Amended and Restated Investor Rights Agreement"); (vi) Engage
and CMGI are entering into the Amendment to Sublease in substantially the form
attached hereto as Exhibit E (the "First Amendment of Sublease"); (vii) Engage
and CMGI are entering into the Transition Services Agreement in substantially
the form attached hereto as Exhibit F (the "Transition Services Agreement");
(viii) the security agreement (the "Original Security Agreement") entered into
on October 4, 2001 by and between CMGI and Engage is being terminated, along
with any UCC perfection certificates; and (ix) certain other relationships and
agreements between Engage and CMGI will be terminated or amended as described
herein;

         WHEREAS, ten minutes following the closing of the transactions
described in the recital immediately above, CMGI is transferring to Engage, for
immediate cancellation and retirement, all of the shares of Engage Common Stock
(as defined herein) held and owned by CMGI in exchange for a payment by Engage
to CMGI of $1,484,178.01 by wire transfer of immediately available funds.

         NOW, THEREFORE, in consideration of the foregoing recitals and the
representations, warranties, covenants and agreements set forth herein and other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

                                    ARTICLE 1
                                   DEFINITIONS

         Section 1.01. Certain Defined Terms. The following terms have the
following meanings:

         "Affiliate" means (i) any Person that directly or indirectly controls
Engage (other than CMGI), (ii) any Person which is controlled, directly or
indirectly, by Engage, and (iii) in the case of an individual, the parents,
descendants, siblings and spouse of such individual. As used herein, the term
"control" of a Person means the possession, directly or indirectly, of the power
to vote 50% or more of any class of voting securities of such Person or to
direct or cause the direction of

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the management or policies of a Person, whether through the ownership of voting
securities, by contract or otherwise.

         "Ancillary Agreements" means the Note, the Warrant, the Security
Documents, the Amended and Restated Investor Rights Agreement, the First
Amendment of Sublease and the Transition Services Agreement and any documents or
agreements contemplated in any of the foregoing.

         "Capital Stock" of any Person means any and all shares, interests,
participations or other equivalents however designated of corporate stock or
other equity participations, including partnership interests, whether general or
limited, of such Person and any rights, warrants or options to acquire an equity
interest in such Person.

         "Change of Control" means, with respect to Engage, the occurrence of
the following:

                  if any "person" or "group" (as such terms are used in Section
                  13(d) and Section 14(d) of the Exchange Act or any successor
                  provisions to the foregoing), including any group acting for
                  the purpose of acquiring, holding, voting or disposing of
                  securities within the meaning of Rule 13d-5(b)(1) under the
                  Exchange Act, other than CMGI or an affiliate thereof, becomes
                  the "beneficial owner" (as defined in Rule 13d-3 under the
                  Exchange Act, except that a person will be deemed to have
                  "beneficial ownership" of all shares that any such person has
                  the right to acquire, whether such right is exercisable
                  immediately or only after the passage of time), directly or
                  indirectly, of greater than 50% of the total Voting Stock of
                  Engage (for purposes of this paragraph, such person or group
                  shall be deemed to beneficially own any Voting Stock of a
                  corporation held by another corporation so long as such person
                  or group beneficially owns, directly or indirectly, in the
                  aggregate a majority of the total voting power of the Voting
                  Stock of such other corporation).

         "Collateral" means all property, now existing or hereafter acquired,
mortgaged or pledged to or purported to be subjected to a Lien in favor of and
for the benefit of CMGI pursuant to the Security Documents.

         "Debt" means all amounts owed by Engage and/or any of its Subsidiaries
to CMGI and CMGI (UK) Limited (including any interest, penalties and all other
fees accrued thereon and net of any and all amounts owed by CMGI to Engage),
including, without limitation, (i) the $8.0 million secured convertible note
promissory issued by Engage to CMGI on October 4, 2001 ("Note #1"), (ii) the
intercompany debt secured convertible promissory note issued by Engage to CMGI
on October 4, 2001 and amended and restated on February 15, 2002 ("Note #2"),
and (iii) the $42.7 million secured note issued by Engage to CMGI on September
30, 2001 ("Note #3").

         "Default" means any condition or event which constitutes an Event of
Default or which with the giving of notice or lapse of time or both would,
unless cured or waived, become an Event of Default (as defined in Section 7.01).

         "ERISA" means the Employee Retirement Income Security Act of 1974.

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

         "Fiscal Year" means a fiscal year of Engage.

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         "Guarantee" by any Person means any obligation, contingent or
otherwise, of such Person directly or indirectly guaranteeing any debt or other
obligation of any other Person and, without limiting the generality of the
foregoing, any obligation, direct or indirect, contingent or otherwise, of such
Person (i) to purchase or pay (or advance or supply funds for the purchase or
payment of) such debt or other obligation (whether arising by virtue of
partnership arrangements, by agreement to keep-well, to purchase assets, goods,
securities or services, to take-or-pay, or to maintain financial statement
conditions or otherwise) or (ii) entered into for the purpose of assuring in any
other manner the obligee of such debt or other obligation of the payment thereof
or to protect such obligee against loss in respect thereof (in whole or in
part), provided that the term Guarantee shall not include endorsements for
collection or deposit in the ordinary course of business. The term "Guarantee"
used as a verb has a corresponding meaning.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind, or any other type of
preferential arrangement that has the practical effect of creating a security
interest, in respect of such asset. For the purposes of this Agreement and the
Ancillary Agreements, Engage or its Subsidiaries shall be deemed to own subject
to a Lien any asset which it has acquired or holds subject to the interest of a
vendor or lessor under any conditional sale agreement, capital lease or other
title retention agreement relating to such asset.

         "Material Adverse Effect" means, with respect to any event, act,
condition or occurrence of whatever nature (including any adverse determination
in any litigation, arbitration, or governmental investigation or proceeding),
whether singly or in conjunction with any other event or events, act or acts,
condition or conditions, occurrence or occurrences, whether or not related, a
material adverse change in, or a material adverse effect upon, any of (i) the
financial condition, operations, business, properties or prospects of Engage and
its Subsidiaries, taken as a whole, (ii) the rights and remedies of CMGI under
this Agreement, the Ancillary Agreements, or the ability of any of Engage or its
Subsidiaries to perform its obligations under this Agreement or the Ancillary
Agreements to which it is a party, (iii) the legality, validity or
enforceability of any material provision of this Agreement or the Ancillary
Agreements, or (iv) the existence, perfection or priority of any security
interest granted in any of the Ancillary Agreements or the value of any material
Collateral.

         "Organizational Documents" means, with respect to any Person other than
a natural person, the documents by which such Person was organized (such as a
certificate of incorporation, articles of organization or partnership agreement)
or which relate to the internal governance of such Person (such as by-laws).

         "Outstanding Notes" means (i) the $8.0 million secured convertible note
issued by Engage to CMGI on October 4, 2001, (ii) the intercompany debt secured
convertible note issued by Engage to CMGI on October 4, 2001 and amended and
restated on February 15, 2002, and (iii) the $42.7 million secured note issued
by Engage to CMGI on September 30, 2001.

         "Permitted Contest" means a contest maintained in good faith by
appropriate proceedings promptly instituted and diligently conducted and with
respect to which such reserve or other appropriate provision, if any, as shall
be required in conformity with GAAP shall have been made; provided that
compliance with the obligation that is the subject of such contest is
effectively stayed during such challenge.

         "Permitted Liens" means Liens permitted pursuant to Section 6.02.

         "Person" means any natural person, corporation, limited liability
company, professional association, limited partnership, general partnership,
joint stock company, joint venture,

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association, company, trust, bank, trust company, land trust, business trust or
other organization, whether or not a legal entity, and any government or agency
or political subdivision thereof.

         "Property Insurance Policy" means any insurance policy maintained by
Engage or any Subsidiary covering losses with respect to tangible real or
personal property or improvements or losses from business interruption.

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

         "Security Documents" means the Security Agreements and any other
agreement pursuant to which Engage or any of its Affiliates provides a Lien on
its assets in favor of, and for the benefit of, CMGI, and all supplementary
assignments, security agreements, pledge agreements, acknowledgments or other
related documents delivered or to be delivered pursuant to the terms hereof or
of any other Ancillary Agreement.

         "Subsidiary" means, with respect to any Person, any corporation or
other entity of which securities or other ownership interests having ordinary
voting power to elect a majority of the board of directors or other persons
performing similar functions are at the time directly or indirectly owned by
such Person. Unless otherwise specified, the term Subsidiary shall refer to a
Subsidiary of Engage.

         "UCC" has the meaning set forth in the Security Agreements.

         "Voting Stock" of any Person means capital stock of such Person which
ordinarily has voting power for the election of directors, or persons performing
similar functions, of such persons, whether at all times or only for so long as
no senior class of securities has such voting power by reason of any
contingency.

         Section 1.02. Accounting Terms And Determinations. Unless otherwise
specified herein, all accounting terms used herein shall be interpreted, all
accounting determinations hereunder shall be made, and all financial statements
required to be delivered hereunder shall be prepared in accordance with
generally accepted accounting principles as in effect from time to time applied
on a basis consistent ("GAAP") (except for changes concurred in by Engage's
independent public accountants) with the most recent audited consolidated
financial statements of Engage and its consolidated Subsidiaries.

         Section 1.03. Definitional Provisions. References in this Agreement to
"Articles", "Sections", "Schedules" or "Exhibits" shall be to Articles,
Sections, Schedules or Exhibits of or to this Agreement unless otherwise
specifically provided. Any term defined herein may be used in the singular or
plural. "Include", "includes" and "including" shall be deemed to be followed by
"without limitation". "Writing", "written" and comparable terms refer to
printing, typing and other means of reproducing words in a visible form.
References to any agreement or contract are to such agreement or contract as
amended, modified or supplemented from time to time. References to any Person
include the successors and assigns of such Person. References to "from" or
"through" any date mean, unless otherwise specified, "from and including" or
"through and including", respectively. References to any statute or act shall
include all related current regulations and all amendments and any successor
statutes, acts and regulations.

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                                    ARTICLE 2

                          EQUITY AND DEBT RESTRUCTURING

         Section 2.01.  Equity and Debt Restructuring.

         (a) CMGI hereby cancels Note #1 and all Debt owed to CMGI by Engage
and/or any of its subsidiaries as evidenced by Note #1. Each instrument and
agreement evidencing such Debt is herewith delivered to Engage and terminated
hereby. In exchange for such cancellation of Note #1 and the Debt evidenced
thereby, and for other consideration described herein, Engage hereby issues and
delivers to CMGI the Warrant. The transactions effectuated pursuant to this
Section 2.01(a) shall be deemed the "First Closing";

         (b) Ten minutes following the First Closing, (i) Engage shall pay
$1,015,821.99 to CMGI by wire transfer of immediately available funds; (ii)
Engage shall issue and deliver to CMGI the Note; (iii) the parties shall execute
and enter into the First Amendment of Sublease and Engage shall pay to CMGI by
wire transfer $80,000 of immediately available funds for payment of the Security
Deposit (as defined in the First Amendment of Sublease) and $28,000 of
immediately available funds for payment, pursuant to the First Amendment of
Sublease, of rent for the remainder of the month of September; (iv) CMGI and
CMGI (UK) Limited shall cancel all Debt owed to CMGI or CMGI (UK) Limited by
Engage and/or any of its Subsidiaries, including, without limitation, the Debt
evidenced by Note #2, Note #3 and any other instruments or agreements evidencing
such Debt shall be delivered to Engage and extinguished and terminated
immediately (other than the Debt owed pursuant to the Note or any of the
Ancillary Agreements); (v) the parties shall execute and enter into the Security
Agreements; (vi) the parties shall execute and enter into the Transition
Services Agreement; (vii) the parties shall execute and enter into the Amended
and Restated Investor Rights Amendment; (viii) Engage shall pay to CMGI
$200,000.00 of immediately available funds as a security deposit as described in
Section 3.4 of the Transition Services Agreement, and $38,000.00 of immediately
available funds as described in Section 2.7 of the Transition Services
Agreement; (ix) the Original Security Agreement and the security interest
granted thereunder shall be deemed terminated, and CMGI will deliver to Engage
appropriate UCC-3 termination statements and any other documentation reasonably
requested by Engage to evidence the termination of such security interests; and
(x) any and all debts and amounts, if any, owed by CMGI to Engage shall be
immediately cancelled, extinguished and terminated and any promissory notes,
instruments or agreements evidencing such debts and amounts owed by CMGI to
Engage shall be delivered to CMGI. The transactions contemplated and effectuated
pursuant to this Section 1.01(b) shall be deemed the "Second Closing";

         (b) Ten minutes following the consummation of the Second Closing, CMGI
shall deliver to Engage free and clear of all liens and encumbrances all equity
securities of Engage held or owned by CMGI, including, without limitation, all
shares of Engage Common Stock, $0.01 par value per share (the "Common Stock"),
and all options, warrants (other than the Warrant and any shares issuable upon
conversion of the Warrant), instruments or agreements evidencing the right of
CMGI to acquire equity securities of Engage, such shares of Common Stock to be
cancelled and retired and no longer issued and outstanding, and such other
equity securities, instruments and agreements to be immediately retired,
extinguished and terminated by Engage (and, if applicable, CMGI),In exchange for
such delivery and cancellation of such securities, Engage shall pay to CMGI
$1,484,178.01 by wire transfer of immediately available funds.

         Section 2.02. Earnout. Commencing with Engage's fiscal quarter ended
October 31, 2003 and for each fiscal quarter thereafter, Engage shall pay to
CMGI 10% of Engage's Quarterly EBITDA, as defined below (such payments are
hereinafter referred to as "Earnout Payments"); provided, however, that in no
event will Engage be obligated to make any further Earnout Payments (or any
portion thereof) at such time as that the sum of (a) the aggregate Earnout
Payments paid to CMGI pursuant to the terms of this Section 2.02 and (b) all
amounts paid to CMGI in respect of the Note exceed $6.0 million in the
aggregate; and provided further, that Engage may at any time and from time to
time elect to voluntarily pay CMGI amounts in addition to those otherwise due to
CMGI, pursuant to this Section 2.02 as a credit against future Earnout Payments
hereunder (and such prepaid amounts shall be deemed Earnout Payments for all
purposes hereunder and pursuant to the Note). For purposes hereof, "Quarterly
EBITDA" shall

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mean Engage's EBITDA (as defined below) for Engage's fiscal quarter in question
as reasonably determined by Engage in accordance with GAAP, and "EBITDA" shall
mean Engage's operating income/loss plus (x) the sum of (i) amortization expense
and impairment charges and (ii) amortization of stock-based compensation, in
each case as such items are reported in the Company's financial statements for
the fiscal quarter in question included in the applicable quarterly or annual
(as applicable) report of the Company filed with the Securities and Exchange
Commission (the "SEC") for such quarter. In the event that Engage is no longer
required to file any such reports with the SEC, Engage shall, for purposes of
the calculations required by this Section 2.02, prepare financial statements in
accordance with GAAP substantially similar to those that would have been
required to be filed with the SEC. For each fiscal quarter with respect to which
Earnout Payments are to be made, Engage shall provide CMGI with written notice
(in accordance with the Notice provisions hereof) of its determination of the
Earnout Payment (the "Company Determination") for such fiscal quarter within 5
days following Engage's filing of the quarterly or annual report covering such
fiscal quarter with the SEC, and in any event within 95 days following any such
fiscal quarter (such determination shall be deemed to be final, conclusive and
binding upon the parties in the event that CMGI does not object to such
determination within the period specified below), and Engage shall pay CMGI any
Earnout Payment due to CMGI as reflected in such written notice within 15 days
following such written notice unless CMGI shall have disputed the amount of such
Earnout Payment within such 15 day period. In the event that CMGI disputes an
Earnout Payment calculation and the parties are unable to resolve the dispute
within 10 days following CMGI's notice of dispute of the Earnout Payment, Engage
shall engage a qualified third party reasonably acceptable to CMGI ("Appraiser")
to make an independent determination of the applicable Earnout Payment in
accordance with the terms of this Section 2.02 (the "Appraiser Determination").
The Appraiser Determination shall be final and binding on Engage and CMGI. If
the Company Determination and the Appraiser Determination differ by an amount of
15% or less of the Company Determination, then the costs of conducting the
appraisal shall be borne equally by Engage and CMGI; if the Company
Determination is greater than the Appraiser Determination by more than 15% of
the Company Determination, then the costs of conducting the appraisal shall be
borne entirely by CMGI; and if the Appraiser Determination is greater than the
Company Determination by more than 15% of the Company Determination, then the
costs of conducting the appraisal shall be borne entirely by the Engage;
provided that in each case costs separately incurred by Engage and CMGI shall be
separately borne by them.

         Section 2.03. Termination of Flycast/AdSmart Obligations.
Simultaneously with the First Closing, all obligations of CMGI under the
Agreement and Plan of Merger and Contribution (the "Flycast/AdSmart Agreement"),
dated as of January 19, 2000, by and among Engage, CMGI, AdSmart Corporation,
Flycast Communications Corporation and FCET Corp. be and hereby are terminated,
including, but not limited to, the requirement that CMGI return certain shares
of Engage Common Stock to Engage on a quarterly basis if certain conditions
pursuant to the Flycast/AdSmart Agreement are not met, and the requirement that
CMGI make certain future cash payments to Engage. In addition, as between CMGI
and Engage, any amounts or obligations outstanding with respect to the escrow
established as part of the 2Can Media, Inc./AdSmart Corporation merger on March
11, 1999 be and hereby are waived, cancelled and terminated by each of Engage
and CMGI.

         Section 2.04. Allocation of Consideration. Within 60 days after the
date hereof, CMGI shall deliver to Engage a statement (the "Allocation
Statement") allocating the consideration among the transactions contemplated
hereby and by the Ancillary Agreements. Engage shall have the right to review
the Allocation Statement. If within 30 days after receipt of the Allocation
Statement, Engage notifies CMGI in writing that it disputes the allocation of
one or more items reflected in the Allocation Statement, CMGI will negotiate
with Engage in good faith to resolve the dispute. If CMGI and Engage fail to
resolve such dispute within 30 days, the Accounting Referee (as defined below)
shall determine a reasonable allocation based on the positions of CMGI and
Engage and shall appropriately revise the Allocation Statement. If Engage

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does not respond within 30 days, or upon resolution of the disputed items, the
allocation reflected on the Allocation Statement (as such may have been
adjusted) shall be binding on the parties hereto "Accounting Referee" shall mean
a nationally recognized accounting firm with no material relationship with
Engage or CMGI, chosen and mutually acceptable to both Engage and CMGI within
five (5) days of the date on which the need to choose the Accounting Referee
arises. The fees and expenses of any Accounting Referee shall be borne equally
by each of Engage and CMGI.

         Section 2.05. Further Assurances. The parties hereto shall execute and
deliver such further instruments and do such further acts and things as may be
required to carry out the intent and purposes of this Agreement and the
Ancillary Agreements.

                                    ARTICLE 3
                                     CLOSING

         Section 3.01. The Closing. The closing of the transactions contemplated
hereby shall take place at the offices of CMGI, Inc., 100 Brickstone Square,
Andover, MA and shall begin at 4:15 p.m., Boston time, on September 9, 2002 (the
"Closing Date").

                                    ARTICLE 4
                    REPRESENTATIONS AND WARRANTIES OF ENGAGE

         Except as disclosed in a disclosure schedule delivered to CMGI at the
Closing, Engage represents and warrants to CMGI, as of the date hereof, that:

         Section 4.01. Corporate Existence and Power. Engage is an entity duly
organized, validly existing and in good standing under the laws of the State of
Delaware, and has all powers and all governmental licenses, authorizations,
consents and approvals required to carry on its business as now conducted and as
will be conducted after the transactions contemplated by this Agreement and the
Ancillary Agreements, except where the failure to have such licenses,
authorizations, consents and approvals would not have a Material Adverse Effect.
Each of Engage and its Subsidiaries is qualified to do business as a foreign
entity in each jurisdiction in which it is required to be so qualified, except
where the failure to be so qualified would not have a Material Adverse Effect.

         Section 4.02. Due Authorization. All corporate action on the part of
each of Engage and its Subsidiaries pursuant to its Organizational Documents,
which is necessary for the authorization, execution and delivery of, and the
performance of all obligations of Engage and its Subsidiaries under this
Agreement and the Ancillary Agreements has been taken.

         Section 4.03. Binding Effect; Liens of Security Documents. Each of this
Agreement and the Ancillary Agreements constitutes a valid and binding agreement
of Engage and, if applicable, its Subsidiaries, and the Note and the Warrant,
when executed and delivered in accordance with this Agreement, will constitute
valid and binding obligations of Engage, in each case enforceable against such
Person in accordance with its respective terms, except as the enforceability
thereof may be limited by bankruptcy, insolvency or other similar laws relating
to the enforcement of creditors' rights generally and by general equitable
principles.

         Section 4.04. Governmental Consents. No consent, approval, order or
authorization of, or registration, qualification, designation, declaration or
filing with, any federal, state or local

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governmental authority on the part of Engage or any of its Subsidiaries is
required in connection with the consummation of the transactions contemplated by
this Agreement and the Ancillary Agreements, except (i) as may be required under
the Securities Act and the rules and regulations thereunder and all applicable
state securities laws in connection with the transactions contemplated by this
Agreement and the Ancillary Agreements and (ii) for such consents, approvals,
orders, authorizations, qualifications, designations, declarations or filings
the failure of which to obtain or make, individually or in the aggregate, would
not have a Material Adverse Effect. All such consents, approvals, orders,
authorizations and qualifications will be effective and all such designations,
declarations and filings will be made within the time prescribed by law.

         Section 4.05. Non-contravention. The execution, delivery and
performance by Engage and its Subsidiaries of this Agreement and the Ancillary
Agreements, and the consummation by Engage and its Subsidiaries of the
transactions contemplated hereby and thereby, do not: (i) contravene or conflict
with Engage's or any of its Subsidiaries' Organizational Documents; (ii)
constitute a violation of any provision of any federal, state, local or foreign
law or rule, regulation or requirement binding upon or applicable to Engage or
any of its Subsidiaries; (iii) constitute a violation of any rule, regulation or
requirement of the National Association of Securities Dealers, Inc.; or (iv)
constitute a default or require any consent under, give rise to any right of
termination, cancellation or acceleration of, or to a loss of any benefit to
which Engage or any of its Subsidiaries is entitled under, or result in the
creation or imposition of any Lien under, any contract to which Engage or any of
its Subsidiaries is a party (other than as contemplated by this Agreement or the
Ancillary Agreements) or any permit, license or similar right relating to Engage
or any of its Subsidiaries or by which Engage or any of its Subsidiaries may be
bound or affected, except any such default, consent, right of termination,
cancellation or acceleration, loss or lien, claim or encumbrance which,
individually or in the aggregate, would not have a Material Adverse Effect.

         Section 4.06. SEC Reports; Financial Statements. Engage has previously
filed (and such filings are available on the website maintained by the SEC) its
(i) Annual Report on Form 10-K for the Fiscal Year ended July 31, 2001, as
amended, (ii) Definitive Proxy Statement filed with the SEC on February 20,
2002, as amended on March 2, 2002, and (iii) all other periodic and current
reports filed by Engage with the SEC under the Exchange Act since October 30,
2001, in each case, as amended through the date hereof (collectively, the
"Engage Reports"). As of their respective dates, each of the Engage Reports (or,
if any of Engage Reports shall have been amended, as of the date of such
amendment), complied in all material respects with applicable requirements of
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 therein, in light of the circumstances under which such
statements were made, not misleading. Engage has timely filed with the SEC, and
the Engage Reports constitute, all reports required to be filed under Sections
13, 14 or 15(d) of the Exchange Act since July 31, 2001. The audited financial
statements and unaudited interim financial statements of Engage included in the
Engage Reports (i) comply as to form in all material respects with the published
rules and regulations of the SEC with respect thereto, (ii) have been prepared
in accordance with GAAP throughout the periods covered thereby (except as may be
indicated therein or in the notes thereto, and in the case of quarterly
financial statements, as permitted by Form 10-Q under the Exchange Act), (iii)
fairly present the consolidated financial condition, results of operations and
cash flows of Engage as of the respective dates thereof and for the periods
referred to therein and (iv) are consistent with the books and records of
Engage.

         Section 4.07. Capitalization. After giving effect to the transactions
contemplated by the Transaction Agreement, the authorized Capital Stock of
Engage consists of: (i) 350,000,000 shares of Common Stock, of which 48,217,673
shares are issued and outstanding and (ii) 5,000,000 shares of preferred stock,
par value $0.01 per share, of which none is issued and outstanding. All of such
shares of Capital Stock have been duly authorized for issuance, and all of such

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shareswhich are issued and outstanding have been validly issued and are fully
paid, nonassessable and free of any liens or encumbrances other than any liens
or encumbrances created by or imposed upon the holders thereof. Engage has
reserved: (i) 36,000,000 shares of Common Stock for issuance under Engage's
Amended and Restated 1995 Equity Incentive Plan, of which 2,955,307 shares are
subject to outstanding options granted thereunder; (ii) 500,000 shares of Common
Stock for issuance under Engage's 1999 Stock Option Plan for Non-Employee
Directors, of which 100,000 are subject to outstanding options granted
thereunder; (iii) 10,000,000 shares of Common Stock for issuance under Engage's
2000 Equity Incentive Plan, of which 4,515,486 are subject to outstanding
options granted thereunder; (iv) 676,116 shares of Common Stock for issuance
under the 1996 Stock Option Plan AdKnowledge Inc., of which none are subject to
outstanding options granted thereunder; (v) 1,500,000 shares of Common Stock for
issuance under the 1999 Employee Stock Purchase Plan, of which 538,965 are
available for future grant; and (vi) 279,330 shares of Common Stock for issuance
under Engage's AdKnowledge Inc. 1998 Stock Option/Stock Issuance Plan, of which
none is subject to outstanding options granted thereunder. All shares of Common
Stock subject to issuance as aforesaid, upon issuance on the terms and
conditions specified in the instruments pursuant to which they are issuable, are
duly authorized and will be validly issued, fully paid and nonassessable. After
giving effect to the transactions contemplated by the Transaction Agreement,
other than the Warrant, except as set forth above, there are no other equity
securities, options, warrants, calls, rights, commitments or agreements of any
character to which Engage is a party or by which it is bound and obligating
Engage to issue, deliver, sell, repurchase or redeem, or cause to be issued,
delivered, sold, repurchased or redeemed, any shares of the Capital Stock of
Engage or obligating Engage to grant, extend or enter into any such equity
security, option, warrant, call, right, commitment or agreement. To Engage's
knowledge, there are no stockholder agreements, voting agreements or voting
trusts relating to any shares of Capital Stock of Engage.

         Section 4.08.  Valid Issuance of Securities.

         (a) The shares of Common Stock to be issued upon exercise of the
Warrant as of the date of this Agreement, if any, by CMGI (the "Warrant
Shares"), have been duly and validly reserved as of the date of this Agreement
for issuance and, upon issuance, sale and delivery in accordance with the terms
of the Warrant will be duly and validly issued, fully paid, nonassessable and
free of preemptive rights binding on Engage.

         (b) Assuming the correctness of the representations made by CMGI in
Section 10.06(e) hereof, no change in applicable law and no unlawful
distribution of the Note, the Warrant or the Warrant Shares by CMGI or other
Persons, the Note, the Warrant and the Warrant Shares (assuming due and proper
exercise of the Warrant in accordance with its terms) will be issued to CMGI in
compliance with applicable exemptions from (i) the registration and prospectus
delivery requirements of the Securities Act and (ii) the registration and
qualification requirements of all applicable securities laws of the states of
the United States.

         Section 4.09. Litigation. Except as otherwise disclosed in the Engage
Reports, there is no action, suit or proceeding pending against, or to the
knowledge of Engage threatened against or affecting, any of Engage or its
Subsidiaries before any court or arbitrator or any governmental body, agency or
official in which there is a reasonable possibility of an adverse decision which
could have a Material Adverse Effect or which in any manner draws into question
the validity of any of the Ancillary Agreements or this Agreement.

         Section 4.10. Ownership of Property. After giving effect to the
transactions contemplated by this Agreement and the Security Documents, Engage
is the lawful owner of, has good and marketable title to and is in lawful
possession of, or has valid leasehold interests in, all properties and other
assets (real or personal, tangible, intangible or mixed) purported to be owned
or leased (as the case may be) by Engage.

                                       9

<PAGE>

         Section 4.11. No Default. No Default or Event of Default has occurred
and is continuing and neither Engage nor any of its Subsidiaries is in default
under or with respect to any material contract, agreement, lease or other
instrument to which it is a party or by which its property is bound or affected,
which, individually or in the aggregate, has had, or is reasonably likely to
have, a Material Adverse Effect; provided that no representation or warranty is
made as to any contract, agreement, lease or other instrument between Engage or
any Affiliate, on the one hand, and CMGI or CMGI (UK) Limited, on the other
hand.

         Section 4.12. Absence of Certain Changes. Since June 14, 2002, the
business and operations of Engage and each of its Subsidiaries have been
conducted in the ordinary course of business consistent with past practice and
there has not been or occurred any event or condition which, individually or in
the aggregate, has had or is reasonably likely to have a Material Adverse
Effect.

         Section 4.13. Subsidiaries. Each Subsidiary is duly organized, validly
existing and in good standing under the laws of its jurisdiction of
organization, and has all powers and all material governmental licenses,
authorizations, consents and approvals required to carry on its business as now
conducted, except where the failure to have such licenses, authorizations,
consents and approvals would not have a Material Adverse Effect. Neither Engage
nor any of its Subsidiaries is engaged in any joint venture or partnership with
any other Person. Mediabridge Technologies, Inc. is the only Subsidiary of
Engage whose assets, business or operations are material to Engage.

         Section 4.14. Taxes. All Federal, state and local tax returns, reports
and statements required to be filed by or on behalf of each of Engage and its
Subsidiaries have been filed with the appropriate governmental agencies in all
jurisdictions in which such returns, reports and statements are required to be
filed, and all taxes (including real property taxes) and other charges shown to
be due and payable have been timely paid prior to the date on which any fine,
penalty, interest, late charge or loss may be added thereto for nonpayment
thereof other than with respect to any taxes subject to a Permitted Contest. All
state and local sales and use taxes required to be paid by each of Engage and
its Subsidiaries have been paid. All Federal and state returns have been filed
by each of Engage and its Subsidiaries for all periods for which returns were
due with respect to employee income tax withholding, social security and
unemployment taxes, and the amounts shown thereon to be due and payable have
been paid in full or adequate provisions therefor have been made.

         Section 4.15. Employment Matters. Engage (i) has withheld all amounts
required by law or agreement to be withheld from wages, salaries and other
payments to its employees and former employees or has remedied any failure to do
so, (ii) is not liable for any arrearages of wages and (iii) is not liable for
taxes or penalties for failure to withhold or pay wages when due. Except as
previously disclosed to CMGI, there are no complaints pending or, to Engage's
knowledge, threatened before any governmental authority alleging unfair labor
practices or unlawful discrimination nor, to Engage's knowledge, is there any
basis for any such claim. There are no existing or, to Engage's knowledge,
threatened labor strikes, disputes, grievances, controversies or other labor
troubles affecting Engage which would individually or in the aggregate, have a
Material Adverse Effect. Engage is not a party to any collective bargaining
agreement with any labor union.

         Section 4.16. Compliance with ERISA. Other than with respect to any
plan administered by CMGI immediately prior to the date of this Agreement,
neither Engage nor any of its Subsidiaries sponsors or participates in any
employee benefit plan subject to ERISA. Other than with respect to any plan
administered by CMGI immediately prior to the date of this Agreement, neither
Engage nor any of its Subsidiaries is required to contribute to any
"multiemployer plan" as defined in ERISA Section 3(37), nor has Engage or any of
its Subsidiaries ever contributed to or withdrawn from such a multiemployer
plan.

                                       10

<PAGE>

         Section 4.17. Brokers. No broker, finder or other intermediary has
brought about the obtaining, making or closing of the transactions contemplated
by this Agreement or the Ancillary Agreements, and neither Engage nor any of its
Subsidiaries has or will have any obligation to any Person in respect of any
finder's or brokerage fees in connection herewith or therewith.

         Section 4.18. Representations and Warranties Incorporated from the
Security Documents. Each of the representations and warranties made in the
Security Documents by Engage and its Subsidiaries is true and correct in all
material respects, and such representations and warranties are hereby
incorporated herein by reference with the same effect as though set forth in
their entirety herein, as qualified therein, except to the extent that such
representation or warranty relates to a specific date, in which case such
representation and warranty shall be true as of such earlier date. Except for
security interests granted to CMGI prior to and on the date hereof, there are no
existing security interests in any of Engage's assets (and none of Engage's
assets are otherwise encumbered).

         Section 4.19.  Intellectual Property.

            (a) Engage or one of its Subsidiaries has sole title to and owns, or
is licensed or otherwise possesses legally enforceable rights to use, or
reasonably expects that it will be able to obtain licenses or legally
enforceable rights to use, all patents or patent applications, software,
know-how, registered or unregistered trademarks and service marks and any
applications therefor, registered or unregistered copyrights and trade names and
any applications therefor, trade secrets or other confidential or proprietary
information ( the "Intellectual Property") necessary to enable Engage and its
Subsidiaries to carry on their respective businesses as currently conducted or
as proposed to be conducted except where the failure to own or have rights to
use such Intellectual Property would not have a Material Adverse Effect or
except as disclosed in Engage Reports.

            (b) Neither Engage nor any of its Subsidiaries is currently subject
to any exclusive licenses as a licensor (whether such exclusivity is temporary
or permanent) to any material portion of the Intellectual Property utilized by
Engage or any of its Subsidiaries.

            (c) Neither Engage nor any of its Subsidiaries is violating or
infringing, and neither Engage nor any of its Subsidiaries has received any
communication alleging that either Engage, any of its Subsidiaries or any of
their respective employees or consultants has violated or infringed, any
Intellectual Property of any other Person, in each case which would reasonably
be expected to have a Material Adverse Effect.

         Section 4.20. Registration Rights. Except for the Amended and Restated
Investor Rights Agreement and the Amended and Restated Investor Rights Agreement
dated June 6, 2000 by and between Engage and CPQ Holdings, Inc., Engage has not
granted or agreed to grant to any Person any rights (including piggyback
registration rights) to have any securities of Engage registered with the SEC or
registered or qualified with any other governmental authority.

         Section 4.21. Solvency. Immediately after giving effect to the
transactions contemplated hereby and by the transactions contemplated by the
Ancillary Agreements (including without limitation, the payments of the cash
contemplated by this Agreement and the Ancillary Agreements, and the issuance of
the Note and the issuance of the Warrant), Engage is , "Solvent". For purposes
of this Section 4.21, "Solvent" means that on a consolidated basis: (a) the fair
market value and the present saleable value of the assets of Engage exceed and
will exceed Engage's liabilities, including its contingent liabilities; (b)
Engage is and will be able to pay all of its debts (including, without
limitation, the principal and interest of its debt facilities and its
liabilities and contingent liabilities) as they mature in the normal course; (c)
the fair market value and the present saleable value of the assets of Engage
exceed and will exceed the amount that will be required to pay Engage's
liabilities and its contingent liabilities as they become absolute and mature;
and (d) Engage did not have and will not have unreasonably small capital with
which to engage in its

                                       11

<PAGE>

business as such business is conducted and proposed to be conducted following
the consummation of the transactions contemplated hereby.

                                    ARTICLE 5
                              AFFIRMATIVE COVENANTS

         Engage (and to the extent applicable, CMGI) agrees that so long as the
Note remains outstanding or Earnout Payments remain to be paid:

         Section 5.01. Financial Statements And Other Reports. Engage will
maintain a system of accounting established and administered in accordance with
sound business practices to permit preparation of financial statements in
accordance with GAAP and to provide the information required to be delivered to
CMGI hereunder, and will deliver to CMGI:

            (a) promptly upon their becoming available, copies of (i) all
financial statements, reports, notices and proxy statements sent or made
available generally by Engage to its securities holders and (ii) all regular and
periodic reports and all registration statements and prospectuses filed by
Engage with any securities exchange or with the SEC or any successor;

            (b) promptly upon any officer of Engage obtaining knowledge (i) of
the existence of any Default, or becoming aware that the holder of any debt of
Engage has given any notice or taken any other action with respect to a claimed
default thereunder, (ii) of any change in Engage's independent public accountant
or any resignation, or decision not to stand for re-election, by any two or more
members of Engage's board of directors (or comparable body), (iii) that any
Person has given any notice to Engage or taken any other action with respect to
a claimed default under any material agreement or instrument to which Engage is
a party or by which any of its assets is bound, or (iv) of the institution of
any litigation or arbitration involving an alleged liability of Engage equal to
or greater than $1.0 million or any adverse determination in any litigation or
arbitration involving a potential liability of Engage equal to or greater than
$1.0 million an Officer's Certificate of Engage specifying the nature and period
of existence of any such condition or event, or written notice specifying the
notice given or action taken by such holder or Person and the nature of such
claimed default (including any Default), event or condition, and what action
Engage has taken, is taking or proposes to take with respect thereto; and

            (c) with reasonable promptness, such other information and data with
respect to Engage and its Subsidiaries as from time to time may be reasonably
requested by CMGI with respect to matters relating to CMGI's financial reporting
and financial statements, SEC filings, tax returns and other related matters. In
addition, each of Engage and CMGI shall reasonably cooperate with the other in
its efforts to comply with the rules and regulations affecting public companies,
including without limitation, the Sarbanes-Oxley Act of 2002. Engage will keep,
and will cause its Subsidiaries to keep, proper books of record and account in
which full, true and correct entries shall be made of all dealings and
transactions in relation to its business and activities; and, for purposes of
providing CMGI with the information and data for the matters described in the
previous sentence, will permit, and will cause its Subsidiaries to permit,
representatives or agents of CMGI to visit and inspect any of their respective
properties, to examine and make abstracts or copies from any of their respective
books and records, to conduct a collateral audit and analysis of their
respective inventories and accounts receivable and to discuss their respective
affairs, finances and accounts with their respective officers, employees and
independent public accountants, all at such reasonable times and as often as may
reasonably be desired. Each of Engage and CMGI acknowledges and agrees that
certain information it may obtain or have access to in connection with the
exercise of its rights under this Section 5.01 may be confidential and
proprietary information of the other party. Each of Engage and CMGI further

                                       12

<PAGE>

agrees that all such information shall be treated in accordance with the Mutual
Nondisclosure Agreement dated September 5, 2002 between the parties hereto (the
"NDA") and that it shall not otherwise disclose such information other than as
permitted by the terms of the NDA.

         Section 5.02. Payment Of Obligations. Engage (i) shall pay and
discharge, and cause its Subsidiaries to pay and discharge, at or before
maturity, all of their respective material obligations and liabilities,
including tax liabilities, except where the same may be the subject of a
Permitted Contest, (ii) shall maintain, and cause its Subsidiaries to maintain,
in accordance with GAAP, appropriate reserves for the accrual of any of the same
and (iii) shall not breach or permit its Subsidiaries to breach, in any material
respect, or permit to exist any material default under, the terms of any
material lease, commitment, contract, instrument or obligation to which it is a
party, or by which its properties or assets are bound.

         Section 5.03. Former Director Indemnification. At the Closing, Engage
shall enter into an indemnification agreement with each of David S. Wetherell
and George A. McMillan in the form of Exhibit 5.03 hereto (each, an
"Indemnification Agreement"), and hereby agrees to indemnify any of its former
members of its Board of Directors who were at the time also executive officers
and directors of CMGI to the same extent as if such persons also entered into an
Indemnification Agreement with Engage.

         Section 5.04.  Maintenance Of Property Insurance.

         (a) Engage will keep, and will cause its Subsidiaries to keep, all
property useful and necessary in its business in good working order and
condition, ordinary wear and tear excepted.

         (b) Engage will maintain, and will cause its Subsidiaries to maintain,
insurance coverage in such amounts and covering such risks as are reasonable and
customary for similarly situated companies engaged in the same or similar
businesses. All such insurance shall be provided by insurers having an A.M. Best
policyholders rating of not less than B+ or such other insurers as CMGI may
approve in writing.

         (c) Engage represents that it has caused CMGI to be named as an
additional insured and loss payee on each insurance policy required to be
maintained pursuant to this Section 5.04. Engage will deliver to CMGI (i) on the
date hereof, a certificate from Engage's insurance broker dated such date
showing the amount of coverage as of such date, (ii) upon the request of CMGI,
from time to time, full information as to the insurance carried, (iii) within
five days of receipt of notice from any insurer, a copy of any notice of
cancellation, nonrenewal or material change in coverage from that existing on
the date of this Agreement, and (iv) forthwith, notice of any cancellation or
nonrenewal of coverage by Engage.

         Section 5.05. Compliance With Laws; Filings Of Reports. Engage will
comply, and cause its Subsidiaries to comply, in all material respects with all
applicable laws, ordinances, rules, regulations, and requirements of
governmental authorities (including ERISA and the rules and regulations
thereunder). Engage will, for so long as it has securities registered under the
Exchange Act or has an effective registration statement under the Securities
Act, use best efforts to make timely filings of such reports as are required to
be filed by it with the SEC.

         Section 5.06.  [Intentionally Omitted.]

         Section 5.07. Reservation Of Shares. Engage will at all times reserve
and keep available, solely for issuance and delivery upon the exercise of the
Warrant, all such shares of Common Stock, or such other stock, securities and
property as from time to time are issuable upon the exercise of the Warrant.
Engage will not avoid or seek to avoid the observance or performance of any of
the terms of the Warrant, but will at all times in good faith assist in the
carrying out of all such terms and in the taking of all such action as may be
necessary or appropriate in order to

                                       13

<PAGE>

protect the rights of CMGI thereunder. In addition, Engage will promptly take
all commercially reasonable actions as may from time to time be required in
order to permit CMGI to exercise the Warrant and to duly and effectively issue
shares of Common Stock pursuant thereto, including, without limitation,
complying with any applicable premerger notification, reporting and waiting
period requirements specified in 15 U.S.C. Section 18a and all regulations
promulgated thereunder, with costs associated with compliance with such
requirements to be borne by Engage.

                                    ARTICLE 6
                               NEGATIVE COVENANTS

         Engage agrees that as long as either the Note or Engage's obligations
pursuant to Section 2.02 remains outstanding Engage will observe the following
negative covenants; provided, that following the time the Note is no longer
outstanding, the negative covenants in Section 6.01 and Section 6.02 shall no
longer apply.

         Section 6.01. Debt. Engage will not, and will not permit any of its
Subsidiaries to, directly or indirectly, create, incur, assume, guarantee or
otherwise become or remain directly or indirectly liable with respect to, any
indebtedness or any contingent obligations which would be senior to the Note
(other than indebtedness or contingent obligations giving rise to Permitted
Liens).

         Section 6.02. Negative Pledge. Engage will not, and will not permit any
of its Subsidiaries to, create, assume or suffer to exist any Lien on any asset
now owned or hereafter acquired by it, except:

            (a) Liens arising in the ordinary course of its business which (i)
do not secure debt, or (ii) do not in the aggregate materially detract from the
value of its assets or materially impair the use thereof in the operation of its
business;

            (b) Liens created in connection with equipment lease transactions or
which constitute purchase money security interests; and

            (c) Liens created by the Security Documents.

         Section 6.03. Transactions with Affiliates. Engage will not, and will
not permit any of its Subsidiaries to, directly or indirectly, enter into or
permit to exist any transaction (including the purchase, sale, lease or exchange
of any property or the rendering of any service) with any officers or members of
the board of directors of Engage or its Subsidiaries without the prior approval
of a majority of the independent members of Engage's Board of Directors.

                                    ARTICLE 7
                                EVENTS OF DEFAULT

         Section 7.01. Events Of Default. If any one or more of the following
events (each an "Event of Default") shall occur and be continuing for any reason
whatsoever (whether voluntary or involuntary, by operation of law or otherwise):

            (a) Engage shall fail to pay any principal on the Note or fail to
make any payment in accordance with the requirements of Section 2.02 when due;

                                       14

<PAGE>

            (b) Engage shall fail to observe or perform any covenant contained
in Article 5 and Article 6 hereof, or Sections 5(b) or (e) of the Security
Agreement and such failure materially adversely affects the rights of CMGI;

            (c) Engage or any of its Subsidiaries shall fail to observe or
perform any covenant or agreement contained in this Agreement, the Note or the
Security Agreements (other than those covered by Section 7.01(a) or 7.01(b)
above) for 10 days after written notice thereof has been given to Engage by
CMGI;

            (d) any event or condition shall occur which (i) results in the
acceleration of the maturity of any debt in a principal amount in excess of
$100,000 (other than the Note) of Engage or any of its Subsidiaries, or (ii)
results in a violation of, or a default under, any provision of the certificate
of incorporation of Engage or any of its Subsidiaries in the event that such
violation or default is not cured within 30 days after Engage's receipt of
written notice thereof from CMGI;

            (e) Engage or any of its Subsidiaries shall commence a voluntary
case or other proceeding seeking liquidation, reorganization or other relief
with respect to itself or its debts under any bankruptcy, insolvency or other
similar law now or hereafter in effect or seeking the appointment of a trustee,
receiver, liquidator, custodian or other similar official of it or any
substantial part of its property, or shall consent to any such relief or to the
appointment of or taking possession by any such official in an involuntary case
or other proceeding commenced against it, or shall make a general assignment for
the benefit of creditors, or shall fail generally to pay its debts as they
become due, or shall take any corporate action to authorize any of the
foregoing;

            (f) an involuntary case or other proceeding shall be commenced
against Engage or any of its Subsidiaries seeking liquidation, reorganization or
other relief with respect to it or its debts under any bankruptcy, insolvency or
other similar law now or hereafter in effect or seeking the appointment of a
trustee, receiver, liquidator, custodian or other similar official of it or any
substantial part of its property, and such involuntary case or other proceeding
shall remain undismissed and unstayed for a period of 90 days; or an order for
relief shall be entered against Engage or any of its Subsidiaries under the
federal bankruptcy laws as now or hereafter in effect;

            (g) any representation, warranty, certification or statement made by
Engage or any of its Subsidiaries in this Agreement or any of the Ancillary
Agreements or in any certificate, financial statement or other document
delivered pursuant to this Agreement of any of the Ancillary Agreements shall
prove to have been incorrect in any respect (or in any material respect if such
representation, warranty, certification or statement is not by its terms already
qualified as to materiality) when made (or deemed made) and thereby materially
adversely affects the rights of CMGI;

            (h) Engage or any of its Subsidiaries shall be prohibited or
otherwise materially restrained from conducting the business theretofore
conducted by it by virtue of any determination, ruling, decision, decree or
order of any court or regulatory authority of competent jurisdiction and such
determination, ruling, decision, decree or order remains unstayed and in effect
for any period of 30 days;

            (i) there shall occur a Change of Control (other than in connection
with Engage's next capital raising transaction of at least $5 million after the
date hereof);

            (j) the auditor's report or reports on the audited statements
delivered pursuant to Section 5.01 for any fiscal year of Engage commencing
after Engage's fiscal year ended July 31, 2002 shall include any material
qualification (including with respect to the scope of audit) or exception;

                                       15

<PAGE>

            (k) except as the result of any action or inaction by CMGI, the Lien
created by any of the Security Documents shall at any time fail to constitute a
first priority valid and perfected Lien on all of the Collateral purported to be
secured thereby.;

            (l) any provision of this Agreement or any of the Ancillary
Agreements shall for any reason fail to constitute the valid and binding
agreement of Engage, or Engage shall so assert in writing; and

            (m) Engage shall fail to pay any amounts under the Transition
Services Agreement or the First Amendment of Sublease when due if such failure
is not cured within 15 days after Engage's written notice thereof from CMGI.

         then, and in every such event and at any time thereafter during the
continuance of such event, CMGI may by written notice to Engage declare the Note
to be, and the Note shall thereupon become, immediately due and payable without
presentment, demand, protest or other notice of any kind, all of which are
hereby waived by Engage and Engage will pay the same; provided that in the case
of any of the Events of Default specified in Section 7.01(e) or 7.01(f) above,
without any notice to Engage or any other act by CMGI, the Note shall become
immediately due and payable without presentment, demand, protest or other notice
of any kind, all of which are hereby waived by Engage and Engage will pay the
same.

                                    ARTICLE 8
                                   CONDITIONS

         Section 8.01. CMGI Conditions To Closing. The obligation of CMGI to
close the transactions contemplated by this Agreement on the Closing Date shall
be subject to the satisfaction of the following conditions precedent:

            (a) receipt by CMGI of this Agreement and each of the Ancillary
Agreements (duly executed) and the duly executed Note and the Warrant;

            (b) receipt by CMGI of evidence satisfactory to it in its sole good
faith discretion of the satisfaction (without waiver) of all conditions to the
closing of the transactions contemplated by this Agreement and the Ancillary
Agreements;

            (c) receipt by CMGI of evidence satisfactory to it of the
effectiveness of and a copy of this Agreement and all Ancillary Agreements, all
in form and substance satisfactory to CMGI, in each case in its sole good faith
discretion;

            (d) receipt by CMGI of an opinion dated as of the date hereof of
McDermott Will & Emery, counsel for Engage, satisfactory in form and substance
to CMGI and covering such matters relating to the transactions contemplated
hereby as CMGI may reasonably request (by its execution and delivery of this
Agreement, Engage authorizes and directs such counsel to deliver such opinions
to CMGI);

            (e) receipt by CMGI of all amounts due and payable to it by Engage
under this Agreement and the Ancillary Agreements;

            (f) receipt by CMGI of all documents Engage is required to delivery
pursuant to Section 5.03 hereof and Section 5.04(c) hereof; and

            (g) receipt by CMGI of all documents CMGI may reasonably request
relating to theexistence of Engage and its Subsidiaries, the authority for and
the validity of this Agreement

                                       16

<PAGE>

and the Ancillary Agreements, and any other matters relevant hereto, all in form
and substance satisfactory to CMGI, in its sole good faith discretion.

                                    ARTICLE 9
                 EXPENSES, INDEMNITY, TAXES AND RIGHT TO PERFORM

         Section 9.01. Expenses. If an Event of Default occurs, Engage shall
reimburse CMGI for all reasonable out-of-pocket expenses incurred by CMGI,
including fees and disbursements of counsel and all expenses of protecting,
storing, insuring, handling, maintaining or selling any Collateral, in
connection with such Event of Default and collection, bankruptcy, insolvency and
other enforcement proceedings resulting therefrom.

         Section 9.02. Indemnity. Engage agrees to indemnify, pay and hold
harmless CMGI from and against any and all liabilities, obligations, losses,
damages, penalties, actions, judgments, suits, claims, costs, expenses and
disbursements of any kind or nature whatsoever (including the fees and
disbursements of counsel for CMGI) relating to any commission, fee or
compensation claimed by any broker (other than any broker retained by CMGI)
asserting any right to payment for the transactions contemplated hereby, which
may be imposed on, incurred by or asserted against CMGI as a result of or in
connection with the transactions contemplated hereby or by the Ancillary
Agreements.

         Section 9.03. Taxes. Engage agrees to pay all governmental assessments,
charges or taxes (except income or other similar taxes imposed on CMGI),
including any interest or penalties thereon, at any time payable or ruled to be
payable in respect of the existence, execution or delivery of this Agreement or
the Ancillary Agreements or the issuance and delivery of the Note, the Warrant
and the Warrant Shares and to indemnify and hold CMGI harmless against liability
in connection with any such assessments, charges or taxes.

         Section 9.04.. Right To Perform. If Engage or any of its Subsidiaries
fails to perform any obligation hereunder or under any of the Ancillary
Agreements, CMGI itself may, but shall not be obligated to, cause such
obligation to be performed at the expense of Engage and Engage agrees to
reimburse CMGI therefor on demand.

         Section 9.05. Mutual Release. Each of CMGI and Engage, on behalf of
itself, and its respective agents, consultants, officers, directors, employees,
investors, shareholders, attorneys, administrators and assigns, hereby fully and
forever releases the other party and its respective agents, consultants,
officers, directors, employees, shareholders, administrators, attorneys,
predecessor and successor corporations and assigns, of and from any actions,
debts, claims, counterclaims, demands, liabilities, damages, costs, expenses and
causes of action relating to any matters of any kind, whether presently known or
unknown, suspected or unsuspected, that the other party may possess arising from
any instrument, agreement or understanding which is not part of the transactions
contemplated hereby or by the Ancillary Agreements, or from any omissions, acts
or facts that have occurred up until and including the date of this Agreement,
except as to any claims under this Agreement or related to the transactions
contemplated by this Agreement or the Ancillary Agreements.

                                       17

<PAGE>

                                   ARTICLE 10

                                  MISCELLANEOUS

         Section 10.01. Survival. All agreements, representations and warranties
made herein and in the Ancillary Agreements shall survive the Closing. The
agreements set forth in Article 9 shall survive the payment of the Note and
exercise of the Warrant and any termination of this Agreement.

         Section 10.02. No Waivers. No failure or delay by any CMGI in
exercising any right, power or privilege under this Agreement or any of the
Ancillary Agreements shall operate as a waiver thereof nor shall any single or
partial exercise thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege. The rights and remedies herein
and therein provided shall be cumulative and not exclusive of any rights or
remedies provided by law.

         Section 10.03. Notices. All notices, requests and other communications
to any party hereunder shall be in writing (including prepaid overnight courier,
facsimile transmission or similar writing) and shall be given to such party at
its address or facsimile number set forth below or at such other address or
facsimile number as such party may hereafter.

If to Engage to:                             Engage, Inc.
                                             100 Brickstone Square
                                             Andover, MA 01810
                                             Attention:  General Counsel
                                             Facsimile:  (978) 684-3141

With a copy to:                              Mintz Levin Cohn Ferris Glovsky
                                                and Popeo PC
                                             One Financial Center
                                             Boston, MA 02111
                                             Attention:  Michael Fantozzi
                                             Facsimile:  (617) 348-1640

If to CMGI to:                               CMGI, Inc.
                                             100 Brickstone Square
                                             Andover, MA 01810
                                             Attention:  General Counsel
                                             Facsimile:  (978) 684-3601

With a copy to:                              Browne Rosedale & Lanouette LLP
                                             100 Brickstone Square, First Floor
                                             Andover, MA 01810
                                             Attention: Thomas B. Rosedale and
                                               Kevin P. Lanouette
                                             Facsimile:  (978) 684-3845

Each such notice, request or other communication shall be effective (i) when
delivered to such party at its address specified above, (ii) when sent to such
party by facsimile, addressed to it at its facsimile number specified above, and
such party sends back an electronic confirmation of receipt,

                                       18

<PAGE>

or (iii) ten days after being sent to such party by certified or registered
United States mail, addressed to it at its address specified below, with first
class or airmail postage.

         Section 10.04. Severability. In case any provision of or obligation
under this Agreement or any of the Ancillary Agreements shall be invalid,
illegal or unenforceable in any jurisdiction, the validity, legality and
enforceability of the remaining provisions or obligations, or of such provision
or obligation in any other jurisdiction, shall not in any way be affected or
impaired thereby.

         Section 10.05. Amendments And Waivers. Any provision of this Agreement
may be amended or waived if, but only if, such amendment or waiver is in writing
and is signed by Engage and CMGI.

         Section 10.06.  Successors And Assigns; Registration.

            (a) The provisions of this Agreement and the Ancillary Agreements
shall be binding upon and inure to the benefit of the parties hereto and their
respective successors and assigns (including any transferee of the Note or the
Warrant), except that neither party may not assign or otherwise transfer any of
its rights or obligations under this Agreement or Ancillary Agreements, by
operation of law or otherwise, without the prior written consent of the other
party and any attempt to do so without such consent shall be void; provided,
however, that such consent shall not be required for any such assignment or
transfer to a party acquiring all or substantially all of Engage's assets or
business. In the event of such a transfer or assignment by Engage, the rights
and privileges herein conferred upon CMGI shall automatically extend to and be
vested in such transferee or assignee, all subject to the terms and conditions
hereof.

             (b)Upon any assignment of the Note or the Warrant, CMGI shall
surrender its Note or Warrant, as the case may be, to Engage for exchange or
registration of transfer, and Engage will promptly execute and deliver in
exchange therefor a new Note or Warrant of the same tenor, and registered in the
name of the assignor (if less than all of the Note or Warrant is assigned) and
the name of the assignee.

            (c) Engage shall maintain a register (the "Note Register") of CMGI
and all assignees of CMGI's that are the holders of the Note and a register (the
"Warrant Register") of CMGI and all assignees of CMGI's that are the holders of
the Warrant issued pursuant to this Agreement. Upon reasonable notice, Engage
will allow CMGI to inspect and copy such lists at Engage's principal place of
business during normal business hours. Prior to the due presentment for
registration of transfer of the Note or Warrant, Engage may deem and treat the
Person in whose name a Note or Warrant is registered as the absolute owner of
such Note or Warrant for the purpose of receiving payment of principal of and
premium and interest on such Note or Warrant and for all other purposes
whatsoever, and Engage shall not be affected by notice to the contrary.

            (d) CMGI (including any assignee of CMGI at the time of such
assignment) represents that (i) it is acquiring its Note and/or Warrant solely
for investment purposes and not with a view toward, or for sale in connection
with, any distribution thereof, (ii) it has received and reviewed such
information as it deems necessary to evaluate the merits and risks of its
investment in the Note and/or Warrant, (iii) it is an "accredited investor"
within the meaning of Rule 501(a) under the Securities Act, (iv) it has such
knowledge and experience in financial and business matters as to be capable of
evaluating the merits and risks of its investment in the Note and/or the
Warrant, including a complete loss of its investment, and (v) the execution and
delivery of this Agreement and the Ancillary Agreements and the consummation of
the transactions contemplated hereby and thereby have been duly authorized and
approved by the CMGI board of directors.

                                       19

<PAGE>

            (e) CMGI understands that the Note and Warrant are being offered
only in a transaction not involving any public offering within the meaning of
the Securities Act, and that, if in the future CMGI decides to resell, pledge or
otherwise transfer any of the Note or the Warrant, such Note or Warrant may be
resold, pledged or transferred only (i) to Engage, (ii) to a person who CMGI
reasonably believes is a qualified institutional buyer that purchases for its
own account or for the account of a qualified institutional buyer to whom notice
is given that such resale, pledge or transfer is being made in reliance on Rule
144A under the Securities Act, or (iii) pursuant to registration or an exemption
from registration under the Securities Act.

            (f) CMGI understands that the Note and the Warrant will, unless
otherwise agreed by Engage and the holder thereof, bear a legend to the
following effect:

         THIS SECURITY IS NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "SECURITIES ACT"). THE HOLDER HEREOF, BY PURCHASING THIS SECURITY,
AGREES FOR THE BENEFIT OF THE ISSUER THAT THIS SECURITY MAY BE RESOLD, PLEDGED
OR OTHERWISE TRANSFERRED, ONLY (1) TO ENGAGE, (2) TO A PERSON WHO THE SELLER
REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF
RULE 144A UNDER THE SECURITIES ACT PURCHASING FOR ITS OWN ACCOUNT OR FOR THE
ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER THAT IS AWARE THAT THE RESALE, PLEDGE
OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A OR (3) PURSUANT TO
REGISTRATION UNDER THE SECURITIES ACT OR AN EXEMPTION FROM REGISTRATION UNDER
THE SECURITIES ACT.

            (g) CMGI (UK) Limited (including any assignee of CMGI (UK) Limited's
at the time of such assignment) represents that the execution and delivery of
this Agreement and the consummation of the transactions involving it and
contemplated hereby have been duly authorized and approved by the CMGI (UK)
Limited board of directors.

         Section 10.07. Lost Or Destroyed Note. If the Note or Warrant becomes
mutilated and is surrendered by CMGI with respect thereto to Engage, or if CMGI
claims that its Note or Warrant has been lost, destroyed or wrongfully taken,
Engage shall execute and deliver to CMGI a replacement Note or Warrant, upon the
affidavit of CMGI attesting to such loss, destruction or wrongful taking with
respect to such Note or Warrant and such lost, destroyed, mutilated, surrendered
or wrongfully taken Note or Warrant shall be deemed to be canceled for all
purposes hereof. Such affidavit shall be accepted as satisfactory evidence of
the loss, wrongful taking or destruction thereof and no indemnity shall be
required as a condition of the execution and delivery of a replacement Note or
Warrant. Any costs and expenses of Engage in replacing any such Note or Warrant
shall be for the account of CMGI.

         Section 10.08. Headings. Headings and captions used in this Agreement
are included for convenience of reference only and shall not be given any
substantive effect.

         Section 10.09. Confidentiality. The NDA shall survive the closings of
the transactions contemplated hereby in accordance with its terms.

         Section 10.10. Governing Law. THIS AGREEMENT AND THE NOTE AND THE
WARRANT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
COMMONWEALTH OF MASSACHUSETTS. NOTHING IN THIS AGREEMENT WILL AFFECT THE RIGHT
OF ANY PARTY TO THIS AGREEMENT TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY
LAW.

         Section 10.11. Waiver Of Jury Trial. EACH OF ENGAGE AND CMGI HEREBY
IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL

                                       20

<PAGE>

PROCEEDING ARISING OUT OF OR RELATING TO THE ANCILLARY AGREEMENTS OR THE
TRANSACTIONS CONTEMPLATED THEREBY AND TO THE FULLEST EXTENT PERMITTED BY LAW
WAIVES ANY RIGHTS THAT IT MAY HAVE TO CLAIM OR RECEIVE CONSEQUENTIAL OR SPECIAL
DAMAGES IN CONNECTION WITH ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO
THE ANCILLARY AGREEMENTS OR THE TRANSACTIONS CONTEMPLATED THEREBY.

         Section 10.12. Counterparts; Integration. This Agreement may be signed
in any number of counterparts, each which shall be an original, with the same
effect as if the signatures thereto and hereto were upon the same instrument.
This Agreement, the Ancillary Agreements, the NDA and the agreements which are
exhibits and referenced herein constitute the entire agreement and understanding
among the parties hereto and supersede any and all prior agreements and
understandings, oral or written, relating to the subject matter hereof and
thereof.

         Section 10.13. Publicity. CMGI and Engage agree to issue mutually
acceptable press releases immediately after the Closing.

                    REMAINDER OF PAGE INTENTIONAL LEFT BLANK

                                       21

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Transaction
Agreement as of the date and year first above written.

                                ENGAGE, INC.
                                      By: /s/ Christopher Cuddy
                                          --------------------------------------
                                          Name:    Christopher Cuddy
                                          Title:   President and Chief Executive
                                                   Officer

                                CMGI (UK) Limited

                                By:       /s/ George A. McMillan
                                          --------------------------------------
                                          Name:    George A. McMillan
                                          Title: Director

                                CMGI, INC.

                                By:       /s/ Thomas Oberdorf
                                          --------------------------------------
                                          Name:    Thomas Oberdorf
                                          Title:   Chief Financial Officer

                                       22MEDVE - CHANGE-OF-CONTROL AGREEMENT

	

CHANGE-OF-CONTROL
AGREEMENT

September 3, 2002 

Mr. William S. Medve

Executive Vice President, Chief Financial Officer and Treasurer

AlphaNet Solutions, Inc.

7 Ridgedale Avenue

Cedar Knolls, New Jersey  07927

Dear Bill:

By Unanimous Written Consent dated
September 3, 2002, the Board of Directors of AlphaNet Solutions, Inc., a New Jersey
corporation (hereinafter, the “Company”), approved the issuance to you of this
Change-of-Control Agreement, detailing your rights and the Company’s obligations to
you in the event of a “Change-Of-Control” (as
defined below) in the ownership, board of directors or management of the Company.  

In consideration of your continued
service to the Company, in the event there is a Change-of-Control that results
during the Protected Period (as defined below) in either the involuntary
termination of your employment with the Company or voluntary resignation from the Company
for Good Reason (as defined below), you shall receive from the Company
immediately upon the effective date of the Change-of-Control: (i) a lump sum payment
equal to one (1) year of your current base salary (including your current monthly car
allowance or equivalent and all vacation pay earned and unused as of the date of
termination/resignation); and (ii) a lump sum payment equal to your earned pro rata
performance bonus for the then-current fiscal year. For purposes of this Agreement, your
earned pro rata performance bonus will be computed as of the effective date of the
Change-of-Control; provided, however, if such date is within thirty (30) days of the
close of a fiscal quarter, your performance bonus will be computed as of the close of
such quarter; provided, further, if the effective date of the Change-of-Control is more
than thirty (30) days prior to the close of a fiscal quarter, your performance bonus will
be computed as of the close of the immediately preceding fiscal quarter.  

In addition to the foregoing
entitlements, for one (1) year from date of termination/resignation, the Company shall
continue, and/or require as a condition of the Change-of-Control that any
successor-in-interest continue, all of your current medical, dental, life and disability
insurance benefits. In the event of a Change-of-Control, all stock options issued to you
before the Change of Control under the Company’s 1995 Stock Plan, as the
same may be amended from time to time, shall, to the extent such stock options have not
previously vested, immediately vest and become exercisable upon the effective date of the
Change-of-Control.  

You agree that, for one (1)
year following the termination of your employment in connection with a Change of Control,
you shall not within the Restricted Territory, as hereinafter defined, directly or
indirectly, as an owner, principal, agent, servant, representative or employee, or as a
member of a partnership or as an officer, director or stockholder of any corporation or
limited liability corporation, or in any manner whatsoever, solicit, service, have
contact with or divert any entity which is, or was during the immediate one (1) year
period prior to the date of termination of your employment with the Company, a
customer of the Company; provided, however, nothing contained herein shall
prohibit you from being employed by any such entity in a non-revenue-generating capacity
following the termination of your employment with the Company. The “Restricted
Territory” shall mean the geographic area commonly known as the New York-New
Jersey-Philadelphia corridor, including the five boroughs of New York City,
the entire State of New Jersey, Philadelphia and the County of Montgomery in
Pennsylvania. In addition, during one (1) year following the termination of your
employment in connection with a Change of Control, you agree to comply with all
provisions of the Confidentiality/Non-Solicitation Agreement executed by and
between the Company and yourself on April 12, 2000.

The receipt of lump sum
payments and the receipt of any and all other benefits hereunder (with the exception
of the immediate vesting of all stock options upon the occurrence of a Change-of-Control) are
also contingent upon your execution of a Severance and Release Agreement in form and
substance reasonably satisfactory to the Company.

The salary and bonus payments, as
well as the benefit continuation and other provisions referenced in the immediately
foregoing paragraphs, shall be applicable for a period of one (1) year from the date of
any Change-of-Control, said period being the “Protected Period” under this
Agreement. If within such one-year period a Change-of-Control has not resulted in
either the involuntary termination of your employment with the Company or any
successor-in-interest to the Company or voluntary resignation from the Company or any
successor-in-interest to the Company for Good Reason, this Agreement and the
terms hereof shall be null and void and have no further force or effect. Similarly, in
the event your employment with the Company or any successor-in-interest to the Company is
voluntarily or involuntarily terminated in the absence of a Change-of-Control, this
Change-of-Control Agreement shall be null and void.  

For purposes of this Agreement, the
following terms will have the meanings ascribed to them below:

“Change-of-Control” shall
be deemed to have occurred when: (a) there is a dissolution or liquidation of the
Company; (b) there is a merger or consolidation in which the Company is
not the surviving corporation (other than a merger or consolidation with a wholly-owned
subsidiary, a reincorporation of the Company in a different jurisdiction, or
other transaction in which there is no substantial change in the stockholders of the
Company or their relative stock holdings; (c) there is a merger in which
the Company is the surviving corporation but after which the stockholders of
the Company (other than any stockholder which merges (or which owns or
controls another corporation which merges) with the Company in such merger)
own less than 50% of the shares or other equity interests in the Company; (d)
there is a sale of substantially all of the assets of the Company; (e)
there is an acquisition, sale or transfer of a majority of the outstanding
shares of the Company by tender offer or similar transaction; (f) a new or
existing shareholder who may be a member of management or an affiliate obtains unilateral
control, directly or indirectly, of the Company or its Board of Directors, whether alone
or in concert with others; (g) a new shareholder or group of shareholders not including
current management or affiliates obtains unilateral control, directly or indirectly, of
the Company or its Board of Directors; (h) there is an involuntary change in the
composition, as of the effective date of this Agreement, of more than thirty-three
percent (33%) of the Board of Directors of the Company; or (i) any person, entity or
combination thereof controls, individually or collectively through ownership, assignment,
voting proxy or the like, fifty (50) or more percent of the outstanding voting
shares ordinarily having the right to vote for the election of the directors of the
Company or the combined voting power thereof.

“Good Reason” shall
mean the occurrence of any of the following within one (1) year of a Change of Control:
(i) any material demotion in your position with the Company; (ii) any material
diminution in your salary, benefits and eligibility for bonus compensation, taken as a
whole; (iii) any material and substantive diminution in your duties and responsibilities
for the Company; or (iv) any reassignment of your duties to a principal place of
employment located more than thirty (30) miles from your principal place of employment at
the date of this letter agreement, provided that Executive has given the Company written
notice of the occurrence of (i), (ii), (iii) or (iv) and provided that the Company does
not, within thirty (30) days of such written notice, return Executive to Executive’s
status before the occurrence.

This Change-of-Control Agreement
supersedes all prior understandings, written or oral, by and between the Company and
yourself concerning the subject matter hereof.  

Please signify your acceptance of
and agreement to the foregoing by signing in the space provided below for this purpose.  

			Very truly yours,

RICHARD G. ERICKSON
President & CEO

(By Authority of the Board of Directors)

ALL OF THE FOREGOING IS

ACCEPTED AND AGREED TO

THIS 9TH OF SEPTEMBER, 2002

WILLIAM S. MEDVE
——————————————

William S. Medve

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