Document:

<Page>
                                                                Exhibit 10.6

             FIRST AMENDMENT TO NOTE AND EQUITY PURCHASE AGREEMENT
             -----------------------------------------------------

      This First Amendment to Note and Equity Purchase Agreement (this
"AMENDMENT"), dated as of August 9, 2001, is entered into by and among
CORNELL COMPANIES, INC., a Delaware corporation (the "COMPANY"), its
Subsidiaries signatories hereto (the "SUBSIDIARIES", and together with the
Company, the "LOAN PARTIES") AMERICAN CAPITAL STRATEGIES, LTD., a Delaware
corporation ("ACS"), ACAS BUSINESS LOAN TRUST 2000-1 ("ACAS 2001"), ACAS
FUNDING TRUST I ("ACAS I") and TEACHERS INSURANCE AND ANNUITY ASSOCIATION OF
AMERICA, a New York corporation ("TIAA"). ACS, ACAS 2001, ACAS I and TIAA are
referred to collectively as the "PURCHASERS" and individually as "PURCHASER".
Capitalized terms used and not defined elsewhere in this Agreement are
defined in Article 1, below.

                                    RECITALS

      A. The Company, ACS and TIAA have entered into that certain Note and
Equity Purchase Agreement, dated as of July 21, 2000 (as amended from time to
time, the "NOTE AGREEMENT").

      B. The Company has entered into that certain (i) Indenture issued by
Municipal Corrections Finance, L.P. (the "LANDLORD"), dated as of August 1, 2001
with The Chase Manhattan Bank, as Trustee and Securities Intermediary (the
"TRUSTEE"); (ii) First Series Supplement to Indenture, dated as of August 1,
2001 for $197,400,000 of 8.47% Taxable Revenue Bonds, due August 1, 2016; (iii)
Master Lease Agreement by and between Landlord and the Company, dated as of
August 14, 2001; and (iv) Reserve Fund Agreement by and among the Landlord,
Trustee and Lehman Brothers Special Financing, Inc., (collectively, the "2001
MUNICIPAL TRANSACTION DOCUMENTS") pursuant to which the Loan Parties agreed to
participate in the transactions contemplated therein (collectively, the "2001
MUNICIPAL TRANSACTION").

      C. The Company has requested that the Purchasers make certain amendments
to the Note Agreement, and the Purchasers are willing to do so subject to the
terms and conditions set forth herein.

                                    AGREEMENT

      NOW, THEREFORE, in consideration of the premises herein contained and
other good and valuable consideration, the sufficiency of which is hereby
acknowledged, the parties hereto, intending to be legally bound, agree as
follows:

1.    DEFINITIONS.  All capitalized terms used but not otherwise defined in
this Amendment shall have the meanings ascribed to them in the Note Agreement.

                                       1
<Page>

2.    AMENDMENTS. Effective as of the date hereof, the Note Agreement is
hereby amended as follows:

      2.1 DEFINITION OF "EBITDAR." The definitions of "EBITDAR" in SECTION 1.1
of the Note Agreement shall be amended by adding the word "PLUS" at the end of
clause (j) thereof, and by adding the following new clauses (k) and (l):

            "(k) rent expense in respect of the Municipal Transaction
      (determined in accordance with GAAP) for such period, MINUS

             (l) the aggregate amount of cash rent payments made by
      the Obligors during such period in respect of the Municipal
      Transaction;"

      2.2 DEFINITION OF "EBITDAR RATIO I." The definitions of "EBITDAR Ratio
I" in SECTION 1.1 of the Note Agreement shall be amended by inserting the
following at the end of clause (a) thereof:

            "MINUS the aggregate credit balance of the Restricted Account on
      such date,"

      2.3 DEFINITION OF "EBITDAR RATIO II." The definitions of "EBITDAR
Ratio II" in SECTION 1.1 of the Note Agreement shall be amended by inserting
the following at the end of clause (a) thereof:

            "MINUS the aggregate credit balance of the Restricted Account on
      such date."

      2.4 DEFINITION OF "ELIGIBLE ACQUISITION." The definition of "Eligible
Acquisition" in Section 1.1 of the Note Agreement shall be amended by replacing
the dollar amount "$20,000,000" therein with "$5,000,000" in lieu thereof.

      2.5 DEFINITION OF "FIXED CHARGES RATIO." The definitions of "Fixed
Charges Ratio" in Section 1.1 of the Note Agreement shall be amended in its
entirety to read as follows:

        "`Fixed Charges Ratio' shall mean, for any Measurement Period, the ratio
of: (a) the sum of (i) EBITDAR for the period of 12-consecutive months ending on
or most recently ended prior to such Measurement Period, PLUS (ii) the aggregate
amount of cash rent payments made by all Loan Parties in respect of the
Municipal Transaction during such period (to the extent deducted in determining
EBITDAR for such period), MINUS (iii) Capital Expenditures made by the Company
and its Subsidiaries during such Measurement Period to the extent not financed
with the proceeds of the Senior Debt, MINUS (iv) taxes paid in cash during such
Measurement Period (other than any Municipal Transaction Taxes paid with
proceeds in the Restricted Account), to (b) the sum of (i) Debt Service for such
Measurement Period, PLUS (ii) the aggregate amount of cash rent payments made by
the Loan Parties in respect of the Municipal Transaction during such period.

      2.6 DEFINITION OF "INTEREST EXPENSE." The definition of "Interest
Expense in SECTION 1.1 of the Note Agreement shall be amended by adding the
following clause (e):

                                       2
<Page>

            "minus (e) the aggregate amount of interest income in respect of the
Restricted Account accrued during such period."

      2.7 DEFINITION OF "MUNICIPAL TRANSACTION TAXES." The following new
definition of "Municipal Transaction Taxes" shall be added to SECTION 1.1 of
the Note Agreement in the appropriate alphabetical location:

          "`Municipal Transaction Taxes' shall mean cash income taxes paid by
the Company during 2001, in an aggregate amount not to exceed $5,000,000, in
respect of gains as a result of the consummation of the 2001 Municipal
Transaction."

      2.8 DEFINITION OF "RESTRICTED ACCOUNT." The following new definition
of "Restricted Account" shall be added to SECTION 1.1 of the Note Agreement
in the appropriate alphabetic location.

            "`Restricted Account' shall have the meaning ascribed to such term
      in SECTION 2.09(f) of the Credit Agreement."

      2.9 ADDITION OF SECTION 3.8. A new SECTION 3.8 is hereby added to the
Agreement immediately following the existing SECTION 3.7, which shall provide as
follows:

            3.8 CERTAIN WAIVERS. The Company unconditionally waives (i) any
            rights to presentment, demand, protest or (except as expressly
            required hereby) notice of any kind, and (ii) any rights of
            recission, setoff, counterclaim or defense to payment under the
            Notes or otherwise that the Company may have or claim against any
            Purchaser or prior Purchaser.

      2.10 AMENDMENT TO SECTION 7.3. SECTIONS 7.3 (a), (b), (d) and (e) of
the Note Agreement are hereby deleted in its entirety and the following
substituted in lieu thereof:

            "(a) EBITDAR RATIO I. The Company will not permit the EBITDAR Ratio
      I with respect to any period ending on a date that falls within any period
      set forth below under the column entitled "Period" to exceed the
      applicable ratio set forth under the caption "Ratio" opposite such period:

<Table>
<Caption>

                        Period                       Ratio
                        ------                       -----
<S>                                                <C>
      August 1, 2001 through and
      including June 30, 2003                      3.0 to 1

      July 1, 2003 through and
      including June 30, 2004                      2.75 to 1

      July 1, 2004 through and

                                       3
<Page>

<Caption>

                        Period                       Ratio
                        ------                       -----
<S>                                                <C>
      all times thereafter                         2.5 to 1

</Table>

            (b) EBITDAR RATIO II. The Company will not permit the EBITDAR
      Ratio II to exceed 3.6 to 1 at any time.

            (d) INTEREST COVERAGE RATIO. The Company will not permit the
Interest Coverage Ratio with respect to any period ending on a date that falls
within any period set forth under the column entitled "Period" to be less than
the applicable ratio set forth under the caption "Ratio" opposite such period:

<Table>
<Caption>

                        Period                       Ratio
                        ------                       -----
<S>                                                <C>
      August 1, 2001 through and
      including March 31, 2003                     1.50 to 1

      April 1, 2003 through and
      including December 31, 2004                  1.80 to 1

      January 1, 2005 and all times thereafter     2.25 to 1

</Table>

            (e) FIXED CHARGES RATIO. The Company will not permit the Fixed
      Charges Ratio with respect to any period ending on a date that falls
      within any period set forth under the column entitled "Period" to be less
      than the applicable ratio set forth under the caption "Ratio" opposite
      such period:
<Table>
<Caption>

                        Period                       Ratio
                        ------                       -----
<S>                                                <C>
      August 1, 2001 through and
      including September 30, 2001                 1.2 to 1

      October 1, 2001 through and including
      December 31, 2001                            1.0 to 1

      January 1, 2002 through and
      including March 31, 2003                     1.0 to 1

      April 1, 2003 and all times thereafter       1.0 to 1"

</Table>

3. CONDITIONS TO EFFECTIVENESS. The effectiveness of this Amendment is
subject to the satisfaction of the following conditions precedent, unless
specifically waived in writing by the Purchasers:

      3.1. The Purchasers shall have received (a) this Amendment, duly executed
by the Company; (b) a true, correct and complete copy of that certain Amendment
No. 2 to Credit

                                       4
<Page>

Agreement and Amendment No. 1 to Master Agreement, dated as of August 9, 2001
and each document relating thereto; (c) true, correct and complete copies of
the 2001 Municipal Transactions Documents; and (d) such additional documents,
instruments and information as the Purchasers or their legal counsel may
request.

      3.2. No Default or Event of Default under the Note Agreement, as
amended hereby, shall have occurred and be continuing, unless such Default or
Event of Default has been specifically waived in writing by the Purchasers.

      3.3 The amendment to Credit Agreement shall have been duly executed and
delivered by the parties thereto and shall be on terms and conditions
satisfactory to the Purchasers, and all conditions precedent therein shall
have been satisfied or waived.

      3.4 The representations and warranties contained herein and in the Note
Agreement and the other Note Documents, as amended hereby, shall be true and
correct on and as of the date hereof after giving effect to the 2001
Municipal Transaction to be consummated on or about the date hereof.

      3.5 The 2001 Municipal Transactions Documents shall have been duly
executed and delivered by the parties thereto, all conditions to the
consummation of the 2001 Municipal Transaction shall have been satisfied or
waived with the Purchasers' consent, and the terms and provisions of the 2001
Municipal Transactions Documents shall be satisfactory to the Purchasers.

4. RATIFICATIONS, REPRESENTATIONS AND WARRANTIES.

                                       5
<Page>

      4.1. The terms and provisions set forth in this Amendment shall modify
and supersede all inconsistent terms and provisions set forth in the Note
Documents and, except as expressly modified and superseded by this Amendment,
the terms and provisions of the Note Documents are ratified and confirmed and
shall continue in full force and effect. The Company and the Purchasers agree
that the Note Documents, as amended hereby, shall continue to be legal,
valid, binding and enforceable in accordance with their respective terms.

      4.2. The Company hereby represents and warrants to the Purchasers that
(a) the execution, delivery and performance of this Amendment and any and all
other agreements executed and/or delivered in connection herewith or
therewith have been authorized by all requisite corporate action on the part
of the Company and will not violate the Articles of Incorporation or Bylaws
of the Company; (b) the representations and warranties contained in the Note
Documents, as amended hereby, are true and correct on and as of the date
hereof as though made on and as of such date; (c) no Default or Event of
Default under the Note Agreement, as amended hereby, has occurred and is
continuing, unless such Default or Event of Default has been specifically
waived in writing by the Purchasers; (d) the Company is in full compliance
with all covenants and agreements contained in the Note Agreement, as amended
hereby, and the other Note Documents; and (e) the Company has not amended its
Articles of Incorporation or its Bylaws since July 21, 2000, except for such
amendments, if any, as are attached to the Company General Certificate.

5. LIMITED WAIVER AND CONSENT.

      5.1. By execution of this Amendment, the Purchasers (a) consent to the
2001 Municipal Transaction, on the terms set forth in the copies of the 2001
Municipal Transaction Documents delivered to the Purchasers in executed form
on or prior to the date of this Amendment, (b) consent to that certain
Amendment No. 2 to Credit Agreement and Amendment No. 1 to Master Agreement,
dated as of August 9, 2001, on the terms set forth in the copies of such
document delivered to the Purchasers in executed form on or prior to the date
of this Amendment and (c) hereby waive any Default or Event of Default which
would otherwise occur or exist under any of the Note Documents solely as a
result of (i) the execution or performance by the Company of the 2001
Municipal Transactions Documents, or (ii) the consummation of the 2001
Municipal Transaction. The failure of any of the Purchasers at any time or
times hereafter to require strict performance by Company of any provision
thereof shall not waive, affect or diminish any right of any of the
Purchasers to thereafter demand strict compliance therewith. The Purchasers
hereby reserve all rights granted under the Note Agreement, the other Note
Documents, this Amendment and any other contract or instrument between
Company and the Purchasers.

      5.2 Except as specifically amended hereby, the Note Agreement and all
other documents, instruments and agreements executed and/or delivered in
connection therewith, shall remain in full force and effect, and are hereby
ratified and confirmed.

      5.3 Except as specifically provided in this Amendment or the Note
Agreement, the execution, delivery and effectiveness of this Amendment shall not
(i) operate as a waiver of any

                                       6
<Page>

right, power or remedy of any Purchaser, whether created by contract, at law
or in equity, (ii) constitute a waiver of, or consent to and departure from,
any provision of the Note Agreement, the other Note Documents, or any other
documents, instruments and agreements executed and/or delivered in connection
therewith, or (iii) be construed or deemed to be a satisfaction, novation,
cure, modification, amendment or release of the Notes, the Agreement and the
other Note Documents.

6. MISCELLANEOUS.

      6.1. SURVIVAL OF REPRESENTATIONS AND WARRANTIES. All representations
and warranties made in the Note Agreement or any other Note Documents,
including, without limitation, any document furnished in connection with this
Amendment, shall survive the execution and delivery of this Amendment and the
other Note Documents, and no investigation by any Purchaser or any closing
shall affect the representations and warranties or the right of such
Purchaser to rely upon them.

      6.2. REFERENCE TO NOTE AGREEMENT. Each of the Note Agreement and the
other Note Documents, and any and all other agreements, documents or
instruments now or hereafter executed and delivered pursuant to the terms
hereof or pursuant to the terms of the Note Agreement, as amended hereby, are
hereby amended so that any reference in the Note Agreement and such other
Note Documents to the Note Agreement shall mean a reference to the Note
Agreement as amended hereby.

      6.3. EXPENSES OF THE PURCHASERS. As provided in the Note Agreement, the
Company agrees to pay on demand all costs and expenses incurred by the
Purchasers in connection with the preparation, negotiation and execution of
this Amendment and any other agreements executed pursuant hereto, including,
without limitation, the reasonable costs and fees of the Purchasers' legal
counsel.

      6.4.  SEVERABILITY.  Any provision of this Amendment held by a court of
competent jurisdiction to be invalid or unenforceable shall not impair or
invalidate the remainder of this Amendment and the effect thereof shall be
confined to the provision so held to be invalid or unenforceable.

      6.5.  SUCCESSORS AND ASSIGNS.  This Amendment will inure to the benefit
of and be binding upon the parties hereto and their respective successors and
permitted assigns.

      6.6.  HEADINGS.  The headings of the sections and subsections of this
Amendment are inserted for convenience only and do not constitute a part of
this Amendment.

                                       7
<Page>

      6.7.  COUNTERPARTS.  This Amendment may be executed in any number of
counterparts, which shall collectively constitute one agreement.

      6.8. LAW GOVERNING. THIS AMENDMENT SHALL BE DEEMED TO HAVE BEEN
SUBSTANTIALLY NEGOTIATED AND MADE IN THE STATE OF TEXAS AND SHALL BE
INTERPRETED AND THE RIGHTS OF THE PARTIES DETERMINED IN ACCORDANCE WITH THE
LAWS OF THE UNITED STATES APPLICABLE THERETO AND THE INTERNAL LAWS OF THE
STATE OF TEXAS APPLICABLE TO AN AGREEMENT EXECUTED, DELIVERED AND PERFORMED
THEREIN, WITHOUT GIVING EFFECT TO THE CHOICE-OF-LAW RULES THEREOF OR ANY
OTHER PRINCIPLE THAT COULD REQUIRE THE APPLICATION OF THE SUBSTANTIVE LAW OF
ANY OTHER JURISDICTION.

      6.9. WAIVER; MODIFICATION. NO PROVISION OF THIS AMENDMENT MAY BE
WAIVED, CHANGED OR MODIFIED, OR THE DISCHARGE THEREOF ACKNOWLEDGED, ORALLY,
BUT ONLY BY AN AGREEMENT IN WRITING SIGNED BY THE PARTY AGAINST WHOM THE
ENFORCEMENT OF ANY WAIVER, CHANGE, MODIFICATION OR DISCHARGE IS SOUGHT.

      6.10. WAIVER OF JURY TRIAL. TO THE FULLEST EXTENT PERMITTED BY
APPLICABLE LAW, THE COMPANY AND THE PURCHASERS HEREBY IRREVOCABLY AND
EXPRESSLY WAIVE ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
COUNTERCLAIM (WHETHER BASED UPON CONTRACT, TORT, OR OTHERWISE) ARISING OUT OF
OR RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THE
ACTIONS OF THE PURCHASERS IN THE NEGOTIATION, ADMINISTRATION OR ENFORCEMENT
THEREOF.

      6.11. FINAL AGREEMENT. THE NOTE AGREEMENT, AS AMENDED HEREBY, AND THE
OTHER NOTE DOCUMENTS REPRESENT THE ENTIRE EXPRESSION OF THE PARTIES WITH
RESPECT TO THE SUBJECT MATTER HEREOF ON THE DATE THIS AMENDMENT IS EXECUTED.
THE NOTE AGREEMENT, AS AMENDED HEREBY, AND THE OTHER NOTE DOCUMENTS MAY NOT
BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE
PARTIES.

                                       8
<Page>

      IN WITNESS WHEREOF, the Company and the Purchasers have caused this First
Amendment to be executed and delivered as of the date first written.

                                  LOAN PARTIES:

                                  CORNELL COMPANIES, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS MANAGEMENT, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF TEXAS, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF CALIFORNIA, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF RHODE ISLAND, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF OKLAHOMA, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

<Page>

                                  CORNELL CORRECTIONS OF GEORGIA, L.P.

                                  By: CCGI Corporation, its general partner

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF ALASKA, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL ABRAXAS GROUP, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  WBP LEASING, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL INTERVENTIONS, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CCGI CORPORATION

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

<Page>

                                  CORNELL CORRECTIONS CONSULTING, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  THE CORNELL COX GROUP, L.P.

                                  By: Cornell Corrections of North America, Inc.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  CORNELL CORRECTIONS OF NORTH AMERICA, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

                                  INTERNATIONAL SELF HELP SERVICES, INC.

                                  By:
                                      ----------------------------------
                                      John L. Hendrix
                                      Chief Financial Officer

<Page>

                                   PURCHASER:

                                    ACAS BUSINESS LOAN TRUST 2000-1

                                    By:  AMERICAN CAPITAL STRATEGIES, LTD.,
                                          As Servicer

                                          By:
                                             ------------------------------
                                             Darin Winn
                                             Senior Vice President

                                    ACAS FUNDING TRUST I

                                    By:  AMERICAN CAPITAL STRATEGIES, LTD.,
                                          As Servicer

                                         By:
                                            ------------------------------
                                            Darin Winn
                                            Senior Vice President

                                    AMERICAN CAPITAL STRATEGIES,
                                    LTD.

                                     By:
                                        -------------------------------
                                        Darin Winn
                                        Senior Vice President

<Page>

                                 PURCHASER:

                                 TEACHERS INSURANCE and ANNUITY
                                 ASSOCIATION of AMERICA

                                  By:
                                      ----------------------------------
                                      Estelle Simsolo
                                      Director - Private Placement<PAGE>
                                                                    Exhibit 10.1

                                                                  Execution Copy
                                                                  --------------

                             TRANSACTION AGREEMENT

                                  dated as of

                               OCTOBER 29, 2001

                                     among

                                   CMGI, INC.

                                 NAVISITE, INC.

                               ALTAVISTA COMPANY

                          COMPAQ COMPUTER CORPORATION

                    COMPAQ FINANCIAL SERVICES CORPORATION

                      COMPAQ FINANCIAL SERVICES COMPANY

                                      and

                 COMPAQ FINANCIAL SERVICES CANADA CORPORATION

<PAGE>

                               TABLE OF CONTENTS

                                                                            Page
                                                                            ----

                                   ARTICLE 1
                                  Definitions

Section 1.01.  Definitions.................................................  1

                                   ARTICLE 2
                            CMGI Debt Restructuring

Section 2.01.  Exchange of CMGI Notes......................................  4

                                   ARTICLE 3
                     NaviSite Equipment Lease Restructuring

Section 3.01.  Termination of NaviSite Lease Obligations...................  4

                                   ARTICLE 4
                        AV Equipment Lease Restructuring

Section 4.01.  Termination of AV Lease Obligations.........................  5

                                   ARTICLE 5
                 Representations And Warranties Of CMGI And AV

Section 5.01.  Corporate Existence and Power...............................  7
Section 5.02.  Corporate Authorization.....................................  7
Section 5.03.  Governmental Authorization..................................  7
Section 5.04.  Noncontravention............................................  7
Section 5.05.  Authorization of Shares; Etc................................  7
Section 5.06.  Litigation..................................................  8

                                   ARTICLE 6
                   Representations And Warranties Of NaviSite

Section 6.01.  Corporate Existence and Power...............................  8
Section 6.02.  Corporate Authorization.....................................  8
Section 6.03.  Governmental Authorization..................................  8
Section 6.04.  Noncontravention............................................  9
Section 6.05.  Litigation..................................................  9

                                   ARTICLE 7
                Representations and Warranties of Compaq and CFS

Section 7.01.  Corporate Existence and Power...............................  9
Section 7.02.  Corporate Authorization.....................................  9

                                       i
<PAGE>

Section 7.03.  Governmental Authorization.................................. 10
Section 7.04.  Noncontravention............................................ 10
Section 7.05.  Litigation.................................................. 10
Section 7.06.  Title To Property........................................... 10
Section 7.07.  No Representations and Warranties........................... 10
Section 7.08.  Purchase For Investment..................................... 11

                                   ARTICLE 8
                                   Covenants

Section 8.01.  Conduct of Businesses....................................... 11
Section 8.02.  Notices of Certain Events................................... 11
Section 8.03.  Reasonable Best Efforts; Further Assurances................. 12
Section 8.04.  Certain Filings............................................. 12
Section 8.05.  NaviSite Stockholder Meeting; etc........................... 12
Section 8.06.  Public Announcements........................................ 14
Section 8.07.  Certain Registration Rights................................. 15
Section 8.08.  Waiver Of Standstill........................................ 15

                                   ARTICLE 9
                                  Tax Matters

Section 9.01 . Allocation of Consideration................................. 15
Section 9.02.  Certain Sales Tax Matters................................... 16

                                   ARTICLE 10
                         Closing; Conditions to Closing

Section 10.01.  Closing.................................................... 16
Section 10.02.  Conditions To Obligations Of The Parties................... 16
Section 10.03.  Conditions To Obligation Of Compaq and CFS................. 17
Section 10.04.  Conditions To Obligations of CMGI, NaviSite and AV......... 18

                                   ARTICLE 11
                           Survival; Indemnification

Section 11.01.  Survival................................................... 18
Section 11.02.  Indemnification............................................ 19
Section 11.03.  Procedures................................................. 19
Section 11.04.  Nature Of Indemnities...................................... 19

                                   ARTICLE 12
                                  Termination

Section 12.01.  Grounds for Termination.................................... 19
Section 12.02.  Effect of Termination...................................... 20

                                       ii
<PAGE>

                                  ARTICLE 13
                                Miscellaneous

Section 13.01.  Notices.................................................... 20
Section 13.02.  Amendments and Waivers..................................... 22
Section 13.03.  Expenses................................................... 22
Section 13.04.  Successors and Assigns..................................... 23
Section 13.05.  Governing Law.............................................. 23
Section 13.06.  Jurisdiction............................................... 23
Section 13.07.  WAIVER OF JURY TRIAL....................................... 23
Section 13.08.  Counterparts; Third Party Beneficiaries.................... 23
Section 13.09.  Entire Agreement........................................... 24
Section 13.10.  Captions................................................... 24

                                      iii
<PAGE>

                             TRANSACTION AGREEMENT

     AGREEMENT dated as of October 29, 2001 among CMGI, Inc., a Delaware
corporation ("CMGI"), NaviSite, Inc., a Delaware corporation ("NAVISITE"),
AltaVista Company, a Delaware corporation ("AV"), Compaq Computer Corporation, a
Delaware corporation ("COMPAQ"), Compaq Financial Services Corporation, a
Delaware corporation ("CFS"), Compaq Financial Services Company, an
unlimited company having a share capital formed under the laws of Ireland
("CFSUK"), and Compaq Financial Services Canada Corporation, a corporation
incorporated under the Nova Scotia Business Corporation Act ("CFSCAD").

                         W  I  T  N  E  S  S  E  T  H :

     WHEREAS, the parties hereto desire to restructure certain debt obligations
of CMGI, certain equipment lease obligations of NaviSite and AV and certain
other matters;

     The parties hereto agree as follows:

                                   ARTICLE 1
                                  Definitions

Section 1.01.  Definitions.  (a)  The following terms, as used herein, have
the following meanings:

     "AFFILIATE" means, with respect to any Person, any other Person directly or
indirectly controlling, controlled by, or under common control with such Person.

     "AV COMMON STOCK" means the Common Stock, par value $0.01 per share, of AV.

     "AV CONVERTIBLE DEMAND NOTE" means the Convertible Demand Note of AV dated
July 11, 2000 in the principal amount of $3,100,000.

     "AV LEASES" means the equipment leases between AV, as lessee, and CFS,
CFSUK or CFSCAD, as lessor, made pursuant to the equipment lease schedules
identified in Schedule 1.01 attached hereto.

     "B2E" means B2E Solutions, LLC, a Delaware limited liability company.

     "B2E PURCHASE AGREEMENT" means the Purchase Agreement, substantially in the
form of Exhibit A attached hereto, to be entered into on the date hereof between
Compaq, CMGI and B2E, relating to the purchase and sale of membership interests
in B2E.

     "CLOSING DATE" means the date of the Closing.

<PAGE>

     "CMGI NOTES" means the Promissory Notes of CMGI held by Compaq due
August 18, 2002 in the principal amounts of $82,000,000 and $138,000,000.

     "CMGI COMMON STOCK" means the common stock, par value $0.01 per share, of
CMGI.

     "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated thereunder.

     "INTERNET CONNECTIVITY WAIVER AND RELEASE" means the Waiver and Release,
substantially in the form of Exhibit B attached hereto, to be executed and
delivered at Closing by Compaq, CMGI and AV.

     "LIEN" means, with respect to any property or asset, any mortgage, lien,
pledge, charge, security interest, encumbrance or other adverse claim of any
kind in respect of such property or asset.  For the purposes of this Agreement,
a Person shall be deemed to own subject to a Lien any property or 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 property or asset.

     "MATERIAL ADVERSE EFFECT" means, with respect to any Person, 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, or occurrence or occurrences, whether or
not related, a material adverse change in, or a material adverse effect upon,
the financial condition, operations, business, properties or prospects of such
Person and its subsidiaries, taken as a whole.

     "NAVISITE COMMON STOCK" means the common stock, par value $0.01 per share,
of NaviSite.

     "NAVISITE CONVERTIBLE SUBORDINATED NOTES" means the 7.5% Convertible
Subordinated Notes of NaviSite due December 12, 2003 in the principal amounts of
$50,000,000 and $30,000,000.

     "NAVISITE NOTE PURCHASE AGREEMENT" means the Note Purchase Agreement,
substantially in the form of Exhibit C attached hereto, to be entered into on
the date hereof among NaviSite, CFS and CMGI.

     "NAVISITE LEASES" means the equipment leases between NaviSite, as lessee,
and CFS, CFSUK or CFSCAD, as lessor, made pursuant to the equipment lease
schedules identified in Schedule 1.01.

     "NAVISITE REPORTS" means NaviSite's Annual Report on Form 10-K for the
fiscal year ended July 31, 2000, Definitive Proxy Statement filed with the

                                       2
<PAGE>

Securities and Exchange Commission (the "SEC") on November 16, 2000 and all
other periodic and current reports filed by NaviSite with the SEC under the
Exchange Act since July 31, 2000 and prior to the date hereof, in each case as
amended prior to the date hereof.

     "PERSON" means an individual, corporation, partnership, limited liability
company, association, trust or other entity or organization, including a
government or political subdivision or an agency or instrumentality thereof.

     "RESTRUCTURING AGREEMENTS" means this Agreement, the B2E Purchase
Agreement, the Internet Connectivity Waiver and Release, the NaviSite Note
Purchase Agreement (and other agreements contemplated thereby) and the CMGI/AV
Registration Rights Agreement.

     "SECURITIES ACT" means the Securities Act of 1933 and the rules and
regulations promulgated thereunder.

     "STRATEGIC BUSINESS AGREEMENT" means the Strategic Business Agreement dated
as of June 29, 1999 between Compaq and CMGI.

     "SUBSIDIARY" means, with respect to a Person, any 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.

(b)  Each of the following terms is defined in the Section set forth opposite
     such term:

Accounting Referee                                    Section 9.01
Allocation Statement                                  Section 9.01
AV Equipment                                       Section 4.01(i)
AV Shares                                             Section 4.01
CMGI Shares                                           Section 2.01
Compaq Account                                        Section 2.01
CFS Account                                           Section 4.01
Closing                                              Section 10.01
Damages                                              Section 11.02
HP                                                    Section 8.06
Indemnified Party                                    Section 11.03
Indemnifying Party                                   Section 11.03
Market Price                                          Section 2.01
Nasdaq                                                Section 2.01
NaviSite Equipment                                 Section 3.01(i)
NaviSite Proxy Statement                              Section 8.05
NaviSite Stockholder Meeting                          Section 8.05
Option                                             Section 8.05(e)
Owned NaviSite Shares                                 Section 8.05

                                       3
<PAGE>

Sales Tax                                             Section 9.02
Stockholder Matters                                   Section 8.05

                                   ARTICLE 2
                            CMGI Debt Restructuring

     Section 2.01.  Exchange of CMGI Notes.  Upon the terms and subject to the
conditions of this Agreement, at Closing the following actions shall take place
simultaneously:

          (i)   Compaq shall deliver the CMGI Notes to CMGI for cancellation.

          (ii)  CMGI shall pay to Compaq $75,000,000 in immediately available
      funds by wire transfer to an account of Compaq (the "COMPAQ ACCOUNT") with
      a bank in New York City designated by Compaq, by notice to CMGI, which
      notice shall be delivered not later than two business days prior to the
      Closing Date .

          (iii) CMGI shall issue and deliver to Compaq certificates representing
      that number of shares of CMGI Common Stock (the "CMGI SHARES") (rounded to
      the nearest share) determined by dividing (x) the sum of (1) $5,000,000
      plus (2) an amount equal to the product of (A) a fraction the numerator of
      which is nine and the denominator of which is twenty-two multiplied by (B)
      the amount of any accrued and unpaid interest on the CMGI Notes through
      (and including) the Closing Date by (y) the Market Price per share of CMGI
      Common Stock. The "MARKET PRICE" per share of CMGI Common Stock shall be
      the average of the last sales prices of CMGI Common Stock as reported on
      the Nasdaq Stock Market ("NASDAQ") and not reported late for each of the
      trading days in the period beginning five trading days immediately
      preceding the date hereof and ending five trading days immediately
      following the date hereof.

          (iv)  Pursuant to the terms and conditions of the B2E Purchase
      Agreement, CMGI shall sell and deliver to Compaq all of the membership
      interests in B2E held by CMGI.

                                   ARTICLE 3
                     NaviSite Equipment Lease Restructuring

      Section 3.01.  Termination of NaviSite Lease Obligations.  Upon the terms
and subject to the conditions of this Agreement, at Closing the following shall
take place simultaneously:

                                       4
<PAGE>

          (i) The NaviSite Leases shall terminate and NaviSite shall have no
      further payment or other obligations thereunder, except for any payment or
      other obligations which survive the termination of the applicable lease in
      accordance with its terms (which obligations shall remain in full force
      and effect as provided therein but shall not, for the avoidance of doubt,
      include any obligation to make regularly scheduled lease payments);
      NaviSite shall become the owner of all equipment subject to the NaviSite
      Leases that was in its possession at the time of such termination (the
      "NAVISITE EQUIPMENT"), free and clear of any Liens arising by, through or
      under Compaq or the applicable lessor; and CFS, CFSUK or CFSCAD, as
      applicable, shall deliver to NaviSite bills of sale, substantially in the
      form attached hereto as Exhibit D, evidencing transfer of ownership of
      such equipment.

          (ii) Pursuant to the terms and conditions of the NaviSite Note
      Purchase Agreement, NaviSite shall (a) deliver to CFS a senior secured
      convertible note in an aggregate principal amount equal to the sum of
      $55,000,000 plus an amount equal to the interest that would have accrued
      on $35,000,000 of such note from November 1, 2001 up to and including the
      Closing Date had such note been issued on November 1, 2001, and (b)
      deliver to CMGI, a senior, secured convertible note in an aggregate
      principal amount of $10,000,000.

          (iii) CMGI shall convert the NaviSite Convertible Subordinated Notes
      (in accordance with its terms) and all intercompany indebtedness owed to
      it by NaviSite on the Closing Date, totaling $96,208,570 as of the date
      hereof, into an aggregate of 24,358,897 shares of NaviSite Common Stock.

                                   ARTICLE 4
                       AV Equipment Lease Restructuring

      Section 4.01.  Termination of AV Lease Obligations.  Upon the terms and
subject to the conditions of this Agreement, at Closing the following shall take
place simultaneously:

          (i) The AV Leases shall terminate and AV shall have no further payment
      or other obligations thereunder, except for any payment or other
      obligations which survive the termination of the applicable lease in
      accordance with its terms (which obligations shall remain in full force
      and effect as provided therein but shall not, for the avoidance of doubt,
      include any obligation to make regularly scheduled lease payments);
      provided that in no event shall AV be required to pay the $1,100,000
      termination fee relating to the termination of a previously agreed U.K.
      equipment lease schedule; AV shall (subject to the immediately

                                       5
<PAGE>

      succeeding sentence) become the owner of all equipment subject to the AV
      Leases that was in its possession at the time of such termination (the "AV
      EQUIPMENT"), free and clear of any Liens arising by, through or
      under Compaq or the applicable lessor; and CFS, CFSUK or CFSCAD, as
      applicable, shall deliver to AV bills of sale, substantially in the form
      attached hereto as Exhibit D, evidencing transfer of ownership of such
      equipment. Prior to the Closing Date AV shall designate equipment having
      an aggregate list price at the time the equipment became subject to the
      relevant lease of $5,000,000 (subject to concurrence of CFS as to the
      calculation of such aggregate list price) and AV shall, at AV's option,
      either (x) not become the owner of such equipment but shall deliver such
      equipment to CFS within 30 days of the Closing Date, or (y) shall, on
      behalf and for the benefit of CFS, arrange for a commercially reasonable
      sale, in AV's discretion, thereof, the proceeds of which shall be
      delivered to CFS within five business days after the sale of such
      equipment but in any event not later than 60 days after the Closing Date.

          (ii) AV shall pay to CFS $20,000,000 in immediately available funds by
      wire transfer to an account of CFS (the "CFS ACCOUNT") with a bank in New
      York City designated by CFS by notice to AV, which notice shall be
      delivered not later than two business days prior to the Closing Date.

          (iii) AV shall pay to Compaq $1,439,000 in immediately available funds
      by wire transfer to the Compaq Account as payment in full of CMGI's
      obligations under the Strategic Business Agreement for AV redirect fees as
      defined in the Strategic Business Agreement through October 31, 2001.
      Compaq shall have no further obligation to redirect Internet traffic to
      AV, and neither CMGI nor AV shall have any obligation to Compaq for AV
      redirect fees pursuant to the Strategic Business Agreement from and after
      November 1, 2001.

          (iv) Compaq shall convert the AV Convertible Demand Note into 196,524
      shares of AV Common Stock (the "AV SHARES"), and AV shall issue and
      deliver certificates for the AV Shares to Compaq.

          (v) Compaq, CMGI and AV shall execute and deliver the Internet
      Connectivity Waiver and Release.

                                   ARTICLE 5
                 Representations And Warranties Of CMGI And AV

     Each of CMGI and AV, severally, represents and warrants to Compaq and CFS
as of the date hereof and as of the Closing Date that:

                                       6
<PAGE>

      Section 5.01. Corporate Existence and Power. Such Person is a corporation
duly incorporated, validly existing and in good standing under the laws of its
jurisdiction of incorporation and has all corporate powers and all material
governmental licenses, authorizations, permits, consents and approvals required
to carry on its business as now conducted. Such Person is duly qualified to do
business as a foreign corporation and is in good standing in each jurisdiction
where such qualification is necessary, except for those jurisdictions where
failure to be so qualified would not, individually or in the aggregate, have a
Material Adverse Effect. Such Person has heretofore delivered to Compaq true and
complete copies of its certificate of incorporation and bylaws as currently in
effect.

      Section 5.02.  Corporate Authorization.  The execution, delivery and
performance by such Person of this Agreement and each other Restructuring
Agreement to which it is a party, and the consummation of the transactions
contemplated hereby and thereby by such Person are within such Person's
corporate powers and have been duly authorized by all necessary corporate or
shareholder action on its part.  This Agreement and the other Restructuring
Agreements to which it is a party constitute valid and binding agreements of
such Person.

      Section 5.03.  Governmental Authorization.  The execution, delivery and
performance by such Person of this Agreement and the other Restructuring
Agreements to which it is a party, and the consummation of the transactions
contemplated hereby and thereby require no material action by or in respect of,
or material filing with, any governmental body, agency or official other than
compliance with any applicable requirements of the Exchange Act.

      Section 5.04. Noncontravention. The execution, delivery and performance by
such Person of this Agreement and the other Restructuring Agreements to which it
is a party and the consummation of the transactions contemplated hereby and by
the other Restructuring Agreements to which it is a party do not and will not
(i) violate its certificate of incorporation or bylaws, (ii) assuming compliance
with the matters referred to in Section 5.03, violate any applicable material
law, rule, regulation, judgment, injunction, order or decree, (iii) require any
consent or other action by any Person under, constitute a default under, or give
rise to any right of termination, cancellation or acceleration of any of its
rights or obligations or to a loss of any benefit to which it is entitled under
any provision of any material agreement or other instrument binding upon it or
(iv) result in the creation or imposition of any Lien on any of its assets,
except as expressly contemplated hereby.

      Section 5.05.  Authorization of Shares; Etc.  The CMGI Shares and the AV
Shares have been duly authorized and, when issued and delivered in accordance
with the terms hereof, will have been validly issued and will be fully paid and
non-assessable, free and clear of any Lien or other right or claim other

                                       7
<PAGE>

than securities laws restrictions on resales. The issuance of such shares is not
subject to any preemptive or similar rights.

      Section 5.06.  Litigation.  There is no action, suit, investigation or
proceeding pending against, or to the knowledge of such Person, threatened
against or affecting it or any of its properties before any court or arbitrator
or any governmental body, agency or official which, in any manner challenges or
seeks to prevent, enjoin, alter or materially delay any of the transactions
contemplated by this Agreement or any of the other Restructuring Agreements.

                                   ARTICLE 6
                   Representations And Warranties Of NaviSite

      NaviSite represents and warrants to Compaq and CFS as of the date hereof
and as of the Closing Date that:

      Section 6.01.  Corporate Existence and Power.  It is a corporation duly
incorporated, validly existing and in good standing under the laws of its
jurisdiction of incorporation and has all corporate powers and all material
governmental licenses, authorizations, permits, consents and approvals required
to carry on its business as now conducted.  It is duly qualified to do business
as a foreign corporation and is in good standing in each jurisdiction where such
qualification is necessary, except for those jurisdictions where failure to be
so qualified would not, individually or in the aggregate, have a Material
Adverse Effect.  It has heretofore delivered to Compaq true and complete copies
of its certificate of incorporation and bylaws as currently in effect.

      Section 6.02.  Corporate Authorization.  The execution, delivery and
performance by NaviSite of this Agreement and each other Restructuring Agreement
to which it is a party, and the consummation of the transactions contemplated
hereby and thereby by NaviSite, are within its corporate powers and, except for
the approval of its stockholders of the Stockholder Matters (as defined herein),
have been duly authorized by all necessary corporate or stockholder action on
its part.  The affirmative vote of holders of a majority of the outstanding
shares of the NaviSite Common Stock is the only vote of the holders of any of
NaviSite's capital stock necessary in connection with the Stockholder Matters.
This Agreement and the other Restructuring Agreements to which NaviSite is a
party constitute valid and binding agreements of NaviSite.

      Section 6.03.  Governmental Authorization.  No consent, approval, order or
authorization of, or registration, qualification, designation, declaration or
filing with, any federal, state or local governmental authority is required in
connection with the consummation of the transactions contemplated herein, except
(i) as may be required under the Securities Act and all applicable state
securities laws in connection with the transactions contemplated by the
Restructuring Agreements

                                       8
<PAGE>

to which it is a party and obtaining stockholder approval of the Stockholder
Matters 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 6.04. Noncontravention. The execution, delivery and performance by
it of this Agreement and the other Restructuring Agreements to which it is a
party and the consummation of the transactions contemplated hereby and by the
other Restructuring Agreements to which it is a party do not and will not (i)
violate its certificate of incorporation or bylaws, (ii) assuming compliance
with the matters referred to in Section 6.03, violate any applicable law, rule,
regulation, judgment, injunction, order or decree, (iii) require any consent or
other action by any Person under, constitute a default under, or give rise to
any right of termination, cancellation or acceleration of any right or
obligation of it or to a loss of any benefit to which it is entitled under any
provision of any material agreement or other instrument binding upon it or (iv)
result in the creation or imposition of any Lien on any of its assets, except as
expressly contemplated hereby.

      Section 6.05.  Litigation.  There is no action, suit, investigation or
proceeding pending against, or to its knowledge, threatened against or affecting
it or any of its properties 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 (except as may
otherwise be set forth in the NaviSite Reports) or which in any manner draws
into question the validity of this Agreement or any of the Restructuring
Agreements to which it is a party.

                                   ARTICLE 7
                Representations and Warranties of Compaq and CFS

      Each of Compaq and CFS, severally, represents and warrants to CMGI,
NaviSite and AV as of the date hereof and as of the Closing Date that:

      Section 7.01 . Corporate Existence and Power. Such Person is a corporation
duly incorporated, validly existing and in good standing under the laws of
Delaware and has all corporate powers and all material governmental licenses,
authorizations, permits, consents and approvals required to carry on its
business as now conducted.

      Section 7.02.  Corporate Authorization.  The execution, delivery and
performance by such Person of this Agreement and the other Restructuring
Agreements to which it is a party, and the consummation of the transactions

                                       9
<PAGE>

contemplated hereby and thereby by such Person, are within such Person's
corporate powers and have been duly authorized by all necessary corporate or
shareholder action on its part.  This Agreement and the other Restructuring
Agreements to which it is a party constitute valid and binding agreements of
such Person.

      Section 7.03.  Governmental Authorization. The execution, delivery and
performance by such Person of this Agreement and the other Restructuring
Agreements to which it is a party and the consummation of the transactions
contemplated hereby and thereby require no material action by or in respect of,
or material filing with, any governmental body, agency or official other than
compliance with any applicable requirements of the Exchange Act.

      Section 7.04. Noncontravention. The execution, delivery and performance by
such Person of this Agreement and each other Restructuring Agreement to which it
is a party and the consummation of the transactions contemplated hereby and
thereby do not and will not (i) violate its certificate of incorporation or
bylaws, (ii) assuming compliance with the matters referred to in Section 7.03,
violate any applicable material law, rule, regulation, judgment, injunction,
order or decree, (iii) require any consent or other action by any Person under,
constitute a default under, or give rise to any right of termination,
cancellation or acceleration of any right or obligation of it or to a loss of
any benefit to which it is entitled under any provision of any material
agreement or other instrument binding upon it, including without limitation the
Agreement and Plan of Reorganization, dated as of September 4, 2001, by and
among Hewlett-Packard Company, Heloise Merger Corporation and Compaq, or (iv)
result in the creation or imposition of any Lien on any of its assets.

      Section 7.05.  Litigation.  There is no action, suit, investigation or
proceeding pending against, or to the knowledge of such Person threatened
against or affecting, it or any of its properties before any court or arbitrator
or any governmental body, agency or official, which in any manner challenges or
seeks to prevent, enjoin, alter or materially delay any of the transactions
contemplated by this Agreement or any of the other Restructuring Agreements.

      Section 7.06. Title To Property. CFS, CFSUK or CFSCAD, as applicable, has
good, valid and marketable title to the NaviSite Equipment and the AV Equipment,
free and clear of any Liens arising by, under or through Compaq or the
applicable lessor, except, with respect to equipment that was acquired by the
applicable lessor in a sale-leaseback transaction, for any Liens arising at or
prior to the time such equipment was so acquired.

      Section 7.07.  No Representations and Warranties.  EXCEPT AS EXPRESSLY SET
FORTH IN SECTION 7.06 HEREOF, IT IS EXPRESSLY AGREED AMONG THE PARTIES HERETO
THAT NAVISITE AND AV SHALL TAKE TITLE TO THE EQUIPMENT SUBJECT TO THE NAVISITE

                                       10
<PAGE>

LEASES AND THE AV LEASES, RESPECTIVELY, ON AN "AS-IS" AND "WHERE-IS" BASIS, AND
NEITHER OF CFS, CFSUK OR CFSCAD MAKES ANY REPRESENTATION OR WARRANTY, WHETHER
EXPRESS OR IMPLIED, WITH RESPECT TO THE EQUIPMENT, INCLUDING WITHOUT LIMITATION,
AS TO TITLE (OTHER THAN AS EXPRESSLY SET FORTH IN SECTION 7.06 HEREOF)
CONDITION, VALUE, DESIGN, OPERATION, FITNESS OR SUITABILITY FOR ANY PARTICULAR
PURPOSE OR USE, MERCHANTABILITY, ABSENCE OF LATENT OR OTHER DEFECTS, WHETHER OR
NOT DISCOVERABLE, OR OTHERWISE.

      Section 7.08. Purchase For Investment. Compaq is acquiring the CMGI Shares
for investment for its own account and not with a view to, or for sale in
connection with, any distribution thereof, nor with any present intention of
distributing or selling the same, other than in compliance with the provisions
of the federal securities laws. Compaq is an "accredited investor" as defined in
Rule 501(a) promulgated under the Securities Act.

                                   ARTICLE 8
                                   Covenants

      Section 8.01. Conduct of Businesses. From the date hereof until the
Closing Date, each of CMGI, NaviSite and AV shall conduct its business in the
ordinary course consistent with past practice; provided that notwithstanding the
foregoing, NaviSite shall be permitted to sell or otherwise dispose of its
streaming media division prior to the Closing Date. Without limiting the
generality of the foregoing, from the date hereof until the Closing Date, none
of the parties hereto will take or agree or commit to take any action that would
make any representation or warranty of it hereunder inaccurate in any material
respect at, or as of any time prior to, the Closing Date, or omit or agree or
commit to omit to take any action necessary to prevent any such representation
or warranty from being inaccurate in any material respect at any such time.

      Section 8.02. Notices of Certain Events. Each of CMGI, NaviSite and AV
shall promptly notify Compaq and CFS of, and each of Compaq and CSF shall notify
CMGI, NaviSite and CFS of:

      (a)  any notice or other communication from any Person alleging that the
consent of such Person is or may be required in connection with the transactions
contemplated by this Agreement or any of the other Restructuring Agreements to
which it is a party;

      (b)  any notice or other communication from any governmental or regulatory
agency or authority in connection with the transactions contemplated by this
Agreement or any of the other Restructuring Agreements to which it is a party;
and

                                       11
<PAGE>

      (c)  any actions, suits, claims, investigations or proceedings commenced
or, to its knowledge threatened against, relating to or involving or otherwise
affecting it that relate to the consummation of the transactions contemplated by
this Agreement or any of the other Restructuring Agreements to which it is a
party.

      Section 8.03. Reasonable Best Efforts; Further Assurances. Subject to the
terms and conditions of this Agreement, each party hereto agrees to use its
reasonable best efforts to take, or cause to be taken, all actions and to do, or
cause to be done, all things necessary or desirable under applicable laws and
regulations to consummate the transactions contemplated by this Agreement and
the other Restructuring Agreements to which it is a party. Each party agrees to
execute and deliver such other documents, certificates, agreements and other
writings and to take such other actions as may be necessary or desirable in
order to consummate or implement expeditiously the transactions contemplated by
this Agreement and the other Restructuring Agreements to which it is a party.

      Section 8.04. Certain Filings. (a) The parties agree to cooperate (i) in
determining whether any action by or in respect of, or filing with, any
governmental body, agency, official or authority is required, or any actions,
consents, approvals or waivers are required to be obtained from parties to any
material contracts, in connection with the consummation of the transactions
contemplated by this Agreement and the other Restructuring Agreements to which
such Person is a party, and (ii) in taking such actions or making any such
filings, furnishing information required in connection therewith and seeking
timely to obtain any such actions, consents, approvals or waivers.

      Section 8.05. NaviSite Stockholder Meeting; etc. (a) Without limiting the
generality of the foregoing, NaviSite shall cause a meeting of NaviSite's
stockholders (the "NAVISITE STOCKHOLDER MEETING") to be duly called and held as
soon as reasonably practicable (and shall use its best efforts to cause such
meeting to be held no later than December 31, 2001), for the purpose of
approving the authorization and issuance of shares of NaviSite Common Stock upon
conversion of the senior secured convertible notes to be issued under the
NaviSite Note Purchase Agreement (such matters, the "STOCKHOLDER MATTERS"), and
CMGI irrevocably agrees to (and to cause its Affiliates to) vote all shares of
NaviSite Common Stock now or hereinafter owned beneficially or of record by it
or any of its Affiliates (the "OWNED NAVISITE SHARES") in favor of the
Stockholder Matters at the NaviSite Stockholder Meeting (or any adjournment
thereof), and that it will not vote any such shares in favor of any corporate
action that would frustrate the purpose, or prevent or delay the consummation,
of the transactions contemplated hereby. CMGI hereby represents and warrants to
Compaq that the voting power represented by the Owned NaviSite Shares is
sufficient to cause the approval of the Stockholder Matters at the NaviSite
Stockholder Meeting. In connection with such meeting, CMGI (but only to the
extent relating to the Stockholder Matters) and NaviSite will (i) promptly
prepare and file with the SEC, use their best efforts

                                       12
<PAGE>

to have cleared by the SEC and thereafter mail to NaviSite's stockholders as
promptly as practicable, such proxy or information statement (and any amendments
or supplements thereto) (the "NAVISITE PROXY STATEMENT") as, in form and
substance, when filed, will comply in all material respects with the applicable
requirements of the Exchange Act, (ii) use their best efforts to obtain the
necessary approvals by NaviSite's stockholders of the Stockholder Matters, and
(iii) otherwise comply in all material respects with all legal requirements
applicable to such meeting and the Stockholder Matters. Compaq, NaviSite and
CMGI shall cooperate with each other in connection with the preparation of the
NaviSite Proxy Statement and Compaq shall use commercially reasonable efforts to
provide to NaviSite and CMGI any information relating to Compaq that is
reasonably requested by NaviSite or CMGI and necessary for the preparation
thereof.

      (b) Each of CMGI (but only to the extent relating to the Stockholder
Matters) and NaviSite represents and warrants to Compaq and CFS that, at the
time a NaviSite Proxy Statement is first mailed to NaviSite's stockholders, and
at the time of the vote by NaviSite's stockholders on the Stockholder Matters,
the NaviSite Proxy Statement, as supplemented or amended, if applicable, will
not contain any untrue statement of a material fact or omit to state any
material fact necessary in order to make the statements made therein, in the
light of the circumstances under which they were made, not misleading.

      (c) CMGI hereby revokes (and agrees to cause its Affiliates to revoke) any
and all previous proxies granted with respect to the Owned NaviSite Shares. By
entering into this Agreement, CMGI hereby grants (and agrees to cause its
Affiliates to grant) a proxy appointing Compaq as CMGI's attorney-in-fact and
proxy, with full power of substitution, for and in the NaviSite's name, to vote,
express, consent or dissent, or otherwise to utilize such voting power solely in
the manner contemplated by paragraph (a) above as Compaq or its proxy or
substitute shall, in Compaq's sole discretion, deem proper with respect to the
Owned NaviSite Shares (it being understood and agreed that in the event Compaq
utilizes such proxy, it shall vote the Owned NaviSite Shares in favor of the
approval of the Stockholder Matters). The proxy granted by CMGI is irrevocable
and is granted in consideration of Compaq entering into this Agreement. The
proxy shall become automatically revoked upon termination of this Agreement in
accordance with its terms.

      (d) Except pursuant to the terms of this Agreement, prior to the approval
of the Stockholder Matters at the NaviSite Stockholder Meeting, CMGI shall not,
and shall not permit its Affiliates to, without the prior written consent of
Compaq, directly or indirectly, (i) grant any proxies or enter into any voting
trust or other agreement or arrangement with respect to the voting of any Owned
NaviSite Shares or (ii) sell, assign, transfer, encumber or otherwise dispose
of, or enter into any contract, option or other arrangement or understanding
with respect

                                       13
<PAGE>

to the direct or indirect sale, assignment, transfer, encumbrance
or other disposition of, any Owned NaviSite Shares.

      (e) If NaviSite's stockholders, for whatever reason, shall not have
approved the Stockholder Matters by June 30, 2002, CFS shall thereafter have the
right (the "OPTION") to purchase from CMGI (and CMGI shall be obligated to sell
to CFS) 42,470,991 shares of NaviSite Common Stock (subject to adjustment for
any stock split, stock dividend, recapitalization or other similar event) for
$1.00 per share (subject to adjustment for any stock split, stock dividend,
recapitalization or other similar event), payable in cash. The Option may be
exercised in whole or in part at any time and from time to time, and shall
expire on December 31, 2007 (except to the extent exercised before such date).
The Option is irrevocable and is granted in consideration of CFS entering into
this Agreement. The closing of the exercise of the Option will occur as soon as
practicable after the exercise thereof (and in any event not later than 30 days
after such exercise or, if later, five days after the date all necessary third
party and governmental consents and approvals are obtained). CFS and CMGI shall
use their best efforts to obtain as promptly as possible all third party and
governmental consents necessary to consummate the closing of the exercise of the
option. CFS may assign its right to acquire the Owned NaviSite Shares pursuant
to the Option to an Affiliate, so long as CFS remains liable for the performance
of such Affiliates' obligations with respect thereto.

      Section 8.06.  Public Announcements.  None of the parties hereto, or their
respective representatives, agents or affiliates, will publicly disclose the
existence of this Agreement or any of the other Restructuring Agreements or make
known any facts related to the transactions described herein or therein without
the prior written consent of Compaq, CMGI and, with respect to disclosures
concerning NaviSite, NaviSite; provided that it is understood and agreed that
(i) Compaq may disclose this Agreement and the other Restructuring Agreements
and the status of the satisfaction of the conditions to closing contained herein
and in the other Restructuring Agreements, to representatives of Hewlett-Packard
Company ("HP") so long as Compaq notifies HP of the confidential nature of such
information; (ii) Compaq may make such public disclosure if required by law or
by the regulations of a national securities exchange or trading market on which
such party's securities are listed or traded, and then only with as much prior
notice to the other parties as is practicable; and (iii) with respect to any
public disclosure by CMGI, NaviSite or AV that is required by law or by the
regulations of a national securities exchange or trading market on which such
party's securities are listed or traded, Compaq shall not unreasonably or
untimely withhold such consent (it being understood and agreed that such consent
shall be deemed to have been given with respect to any such required disclosure
(a "SUBSEQUENT DISCLOSURE") occurring after the date this Agreement and the
transactions contemplated hereby are first publicly announced in compliance with
the terms of this Agreement (the "INITIAL DISCLOSURE"), so long as such
subsequent disclosure is of the same scope and character as the initial
disclosure).  Without

                                       14
<PAGE>

limiting the generality of the foregoing, each party shall use reasonable
efforts to give the other parties reasonable prior notice of any contemplated
public announcement of this agreement or the other Restructuring Agreements or
the transactions contemplated hereby or thereby.

      Section 8.07. Certain Registration Rights. Compaq, CMGI and AV hereby
agree that effective as of the Closing Date (i) the CMGI Shares and the AV
Shares shall be CMGI Registrable Securities and Newco Registrable Securities,
respectively, under that certain Registration Rights Agreement dated as of
August 18, 1999 (as may be amended from time to time, the "CMGI/AV REGISTRATION
RIGHTS AGREEMENT") by and among Compaq, CMGI and AV, (ii) notwithstanding
anything contained in Section 2.1(e) or Section 3.1(d) of the CMGI/AV
Registration Rights Agreement, CMGI shall be required to register CMGI
Registrable Securities pursuant to Section 2.1 or Section 3.1, as applicable, of
such agreement so long as the approximate aggregate offering price of the CMGI
Registrable Securities proposed to be registered by the investors thereunder is
at least $5,000,000 or otherwise represents all CMGI Registrable Securities then
held and (iii) notwithstanding anything contained in Section 4.1(d) or Section
5.1(d) of the CMGI/AV Registration Rights Agreement, AV shall be required to
register Newco Registrable Securities pursuant to Section 4.1 or Section 5.1, as
applicable, of such agreement so long as the approximate aggregate offering
price of the Newco Registrable Securities proposed to be registered by the
investors thereunder is at least $5,000,000 or otherwise represents all Newco
Registrable Securities then held.

      Section 8.08.  Waiver Of Standstill.  CMGI hereby waives the provisions of
Section 5.6 of the Purchase and Contribution Agreement dated as of June 29, 1999
by and among Compaq, CMGI, AV and certain other parties to the extent (and only
to the extent) necessary to permit the consummation of the transactions
contemplated by this Agreement.

                                   ARTICLE 9
                                  Tax Matters

      Section 9.01. Allocation of Consideration. Within 60 days after the
Closing Date, Compaq shall deliver to CMGI a statement (the "ALLOCATION
STATEMENT") allocating the consideration among the transactions contemplated
hereby and by the other Restructuring Agreements. CMGI shall have the right to
review the Allocation Statement. If within 30 days after receipt of the
Allocation Statement, CMGI notifies Compaq in writing that it disputes the
allocation of one or more items reflected in the Allocation Statement, Compaq
and CMGI will negotiate in good faith to resolve such dispute. If Compaq and
CMGI fail to resolve such dispute within 30 days, the Accounting Referee (as
defined below) shall determine a reasonable allocation based on the positions of
Compaq and CMGI and shall appropriately revise the Allocation Statement. If CMGI
does not

                                       15
<PAGE>

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. CMGI and Compaq agree to act in accordance with
such allocation in the preparation, filing and audit of any Tax return.
"ACCOUNTING REFEREE" shall mean a nationally recognized accounting firm with no
material relationship with Compaq, CMGI or their Affiliates, chosen and mutually
acceptable to both Compaq and CMGI within five 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 Compaq and CMGI.

      Section 9.02.  Certain Sales Tax Matters.  (a) CFS shall pay (or shall
promptly reimburse NaviSite to the extent NaviSite pays) any state sales tax
incurred by NaviSite in connection with the transfer of the NaviSite Equipment
to NaviSite pursuant to Section 3.01(i) (the "SALES TAX").  NaviSite shall (i)
make any necessary filings with any taxing authority with respect to the Sales
Tax in a timely manner, (ii) notify CFS in writing of the amount of Sales Tax
paid or payable, (iii) promptly notify CFS of any communications from or with
the relevant taxing authorities with respect to the Sales Tax and (iv) cooperate
with CFS in resolving any disputes concerning the Sales Tax.

      (b)  For the avoidance of doubt, AV shall pay any sales tax or value added
tax incurred in connection with the transfer of the AV Equipment to AV.

                                  ARTICLE 10
                         Closing; Conditions to Closing

      Section 10.01. Closing. (a) The closing (the "CLOSING") of the
transactions contemplated hereby shall take place at the offices of Davis Polk &
Wardwell, 450 Lexington Avenue, New York, New York, as soon as possible (and not
less than six business days after the date hereof), but in no event later than
10 business days, after satisfaction of the conditions set forth below, or at
such other time or place as Compaq, CMGI and NaviSite may agree.

      (b) The closing of the transactions contemplated hereby and by the other
Restructuring Agreements shall, unless Compaq, CMGI and NaviSite otherwise
agree, take place simultaneously notwithstanding that the conditions to closing
contained in one or several Restructuring Agreements may become satisfied prior
to the satisfaction of the conditions to closing contained in other
Restructuring Agreements.

      Section 10.02. Conditions To Obligations Of The Parties. The obligations
of the parties to consummate the Closing are subject to the satisfaction of the
following conditions:

                                       16
<PAGE>

      (a)  No provision of any applicable law or regulation and no judgment,
injunction, order or decree shall prohibit the consummation of the Closing.

      (b) All actions by or in respect of or filings with any governmental body,
agency, official or authority required to permit the consummation of the Closing
shall have been taken, made or obtained.

      Section 10.03. Conditions To Obligation Of Compaq and CFS. The obligations
of Compaq and CFS to consummate the Closing, and the obligations of CFSUK and
CFSCAD to consummate the transactions contemplated by Sections Section 3.01 and
Section 4.01, are subject to the satisfaction of the following further
conditions:

      (a) (i) Each of CMGI, NaviSite and AV shall have performed in all material
respects all of its obligations hereunder required to be performed by it on or
prior to the Closing Date, (ii) the representations and warranties of each such
Person contained in this Agreement and in any certificate delivered by such
Person shall be true in all material respects at and as of the Closing Date as
if made at and as of such time, and (iii) Compaq and CFS shall have received
certificates signed by the Secretary of each such Person to the foregoing
effect.

      (b)  Each of the other Restructuring Agreements shall be in full force and
effect and each of the conditions to the obligations of Compaq or CFS, as
the case may be, to consummate the transactions contemplated by the other
Restructuring Agreements shall have been satisfied.

      (c) Compaq and CFS shall have received (i) an opinion dated as of the
Closing Date of one or more nationally recognized outside counsel to NaviSite
reasonably satisfactory to Compaq and CFS with respect to such matters as Compaq
and CFS may reasonably request and (ii) an opinion dated as of the Closing Date
of Hale and Dorr LLP, counsel to CMGI, in the form attached hereto as Exhibit E.
In rendering such opinions, such counsel may rely upon certificates of public
officers, and, as to matters of fact, upon certificates of officers of CMGI and
NaviSite, copies of which certificates shall be contemporaneously delivered to
Compaq and CFS.

      (d) CMGI, NaviSite and AV shall have received all consents, authorizations
or approvals from the governmental agencies referred to in Section 5.03 and
Section 6.03, except, in the case of NaviSite, for compliance with the National
Association of Securities Dealers shareholder approval requirements relating to
the Stockholder Matters, in each case in form and substance reasonably
satisfactory to Compaq, and no such consent, authorization or approval shall
have been revoked.

      (e)  Compaq and CFS shall have received all documents they may reasonably
request relating to the existence of CMGI, NaviSite and AV and the

                                       17
<PAGE>

authority of CMGI, NaviSite and AV for this Agreement, all in form and
substance reasonably satisfactory to Compaq.

      Section 10.04.  Conditions To Obligations of CMGI, NaviSite and AV.  The
obligations of CMGI, NaviSite and AV to consummate the Closing are subject to
the satisfaction of the following further conditions:

      (a) (i) Each of Compaq and CFS shall have performed in all material
respects all of its obligations hereunder required to be performed by it at or
prior to the Closing Date, (ii) the representations and warranties of each such
Person contained in this Agreement and in any certificate delivered by such
Person with respect thereto shall be true in all material respects at and as of
the Closing Date as if made at and as of such date and (iii) CMGI, NaviSite and
AV shall have received a certificate signed by the Secretary of each such Person
to the foregoing effect.

      (b) Compaq and CFS shall have received all consents, authorizations or
approvals from governmental agencies referred to in Section 7.03, in each case
in form and substance reasonably satisfactory to CMGI and NaviSite, and no such
consent, authorization or approval shall have been revoked.

      (c) CMGI, NaviSite and AV shall have received all documents they may
reasonably request relating to the existence of Compaq and CFS and the authority
of Compaq and CFS for this Agreement, all in form and substance reasonably
satisfactory to CMGI and NaviSite.

      (d)  Each of the other Restructuring Agreements shall be in full force and
effect and each of the conditions to the obligations of CMGI, NaviSite and
AV, as the case may be, to consummate the transactions contemplated by the
other Restructuring Agreements shall have been satisfied.

                                  ARTICLE 11
                           Survival; Indemnification

      Section 11.01. Survival. The representations and warranties of the parties
hereto contained in this Agreement or in any certificate delivered pursuant
hereto or in connection herewith shall survive the Closing until the eighteenth
month anniversary of the Closing Date. Notwithstanding the preceding sentence,
any representation or warranty in respect of which indemnity may be sought under
this Agreement shall survive the time at which it would otherwise terminate
pursuant to the preceding sentence, if notice of the inaccuracy or breach
thereof giving rise to such right of indemnity shall have been given to the
party against whom such indemnity may be sought prior to such time.

                                       18
<PAGE>

      Section 11.02.  Indemnification.  (a) Each of CMGI, NaviSite and AV,
severally, hereby indemnifies Compaq and CFS and their Affiliates against and
agrees to hold each of them harmless from any and all damage, loss, liability
and expense (including, without limitation, reasonable expenses of investigation
and reasonable attorneys' fees and expenses in connection with any action, suit
or proceeding whether involving a third party claim or a claim solely between
the parties hereto) ("DAMAGES") incurred or suffered by Compaq, CFS or any of
their Affiliates arising out of any misrepresentation or breach of warranty or
breach of covenant or agreement made or to be performed by CMGI, NaviSite or AV,
respectively pursuant to this Agreement.  For the avoidance of doubt, each of
CMGI, NaviSite or AV shall only be responsible hereunder for any Damages to the
extent such Damages arise out of any breach or misrepresentation by such Person.

      (b) Each of Compaq and CFS, severally, hereby indemnifies CMGI, NaviSite
and AV and their Affiliates against and agrees to hold each of them harmless
from any and all Damages incurred or suffered by CMGI, NaviSite, AV or any of
their Affiliates arising out of any misrepresentation or breach of warranty or
breach of covenant or agreement made or to be performed by Compaq, CFS, CFSUK or
CFSCAD pursuant to this Agreement.

      Section 11.03. Procedures. The party seeking indemnification under Section
11.02 (the "INDEMNIFIED PARTY") agrees to give prompt notice to the party
against whom indemnity is sought (the "INDEMNIFYING PARTY") of the assertion of
any claim, or the commencement of any suit, action or proceeding in respect of
which indemnity may be sought under such Section. The Indemnifying Party may at
the request of the Indemnified Party participate in and control the defense of
any such suit, action or proceeding at its own expense. The Indemnifying Party
shall not be liable under Section 11.02 for any settlement effected without its
consent of any claim, litigation or proceeding in respect of which indemnity may
be sought hereunder.

      Section 11.04. Nature Of Indemnities. The indemnities contained herein are
in addition to, without duplication, any indemnities, rights and claims, whether
in law or equity, of the parties contained in, or arising out of the
transactions contemplated by, the other Restructuring Agreements; provided that
no party shall be entitled to indemnification hereunder for any Damages to the
extent such party is indemnified therefor under another Restructuring Agreement.
No party shall be liable hereunder for any consequential or punitive damages.

                                  ARTICLE 12
                                  Termination

      Section 12.01. Grounds for Termination. This Agreement may be terminated
at any time prior to the Closing:

                                       19
<PAGE>

      (a)  by mutual written agreement of CMGI, NaviSite, AV and Compaq;

      (b)  by any of CMGI, Compaq or NaviSite if the Closing shall not have been
consummated on or before December 31, 2001 (unless the failure to
consummate results primarily from a material breach by the terminating
party of any representation, warranty or covenant contained in this
Agreement); or

      (c) by any of CMGI, Compaq or NaviSite if there shall be any law or
regulation that makes consummation of the transactions contemplated hereby or by
any of the other Restructuring Agreements illegal or otherwise prohibited or if
consummation of the transactions contemplated hereby or by any of the other
Restructuring Agreements would violate any nonappealable final order, decree or
judgment of any court or governmental body having competent jurisdiction.

The party desiring to terminate this Agreement pursuant to Section 12.01(b) or
Section 12.01(c) shall give notice of such termination to the other party.

      Section 12.02.  Effect of Termination.  If this Agreement is terminated as
permitted by Section 12.01, such termination shall operate as an automatic
termination of all Restructuring Agreements.  Further, such termination shall be
without liability of the party terminating this Agreement (or any stockholder,
director, officer, employee, agent, consultant or representative of such party)
to the other parties to this Agreement; provided that if such termination shall
result from the (i) willful failure of a party to fulfill a condition to the
performance of the obligations of the other parties, (ii) failure to perform in
any material respect a covenant of this Agreement, or (iii) a material breach by
a party hereto of any representation or warranty or agreement contained herein,
such party shall be fully liable for any and all Damages incurred or suffered by
the other parties as a result of such failure or breach.  The provisions of
Section 13.03, Section 13.05, Section 13.06 and Section 13.07 shall survive any
termination hereof pursuant to Section 12.01.

                                  ARTICLE 13
                                 Miscellaneous

      Section 13.01. Notices. All notices, requests and other communications to
any party hereunder shall be in writing (including facsimile transmission) and
shall be given,

                                       20
<PAGE>

     if to Compaq or CFS, to:

          Compaq Computer Corporation
          40 Old Bolton Road
          Stow, MA 01175-1229
          Attention:  Paul Henrion, Esq.
          Fax:  (978) 496-9042

          Compaq Financial Services Corporation
          420 Mountain Avenue
          Murray Hill, NJ 07974
          Attention :  General Counsel
          Fax:  (908) 898-4137

     in each case with a copy to:

          Davis Polk & Wardwell
          450 Lexington Avenue
          New York, New York  10017
          Attention:  Christopher Mayer, Esq.
          Fax:  (212) 450-4800

     if to CMGI, to:

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

                                       21
<PAGE>

     with a copy to:

         Hale and Dorr LLP
         60 State Street
         Boston, MA 02109
         Attention: Mark Borden, Esq.
         Fax: (617) 526-5000

     if to NaviSite, to:

          NaviSite, Inc.
          400 Minuteman Road
          Andover, MA 01810
          Attention:  General Counsel
          Fax:  (978) 682-8100

     if to AV, to:

          AltaVista Company
          1070 Arastradero Road
          Palo Alto, CA 94304
          Attention: General Counsel

All such notices, requests and other communications shall be deemed received on
the date of receipt by the recipient thereof if received prior to 5 p.m. in the
place of receipt and such day is a business day in the place of receipt.
Otherwise, any such notice, request or communication shall be deemed not to have
been received until the next succeeding business day in the place of receipt.

      Section 13.02. Amendments and Waivers. (a) Any provision of this Agreement
may be amended or waived if, but only if, such amendment or waiver is in writing
and is signed, in the case of an amendment, by each party to this Agreement, or
in the case of a waiver, by the party against whom the waiver is to be
effective.

      (b)  No failure or delay by any party in exercising any right, power or
privilege hereunder 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 provided shall be cumulative and not exclusive of any
rights or remedies provided by law.

      Section 13.03. Expenses. Except as otherwise provided herein or in the
other Restructuring Agreements, each party hereto shall bear its own costs and
expenses incurred in connection with this Agreement and the Restructuring
Agreements.

                                       22
<PAGE>

      Section 13.04.  Successors and Assigns.  The provisions of this Agreement
shall be binding upon and inure to the benefit of the parties hereto and their
respective successors and assigns; provided that, except as otherwise set forth
in a Restructuring Agreement, no party may assign, delegate or otherwise
transfer any of its rights or obligations under this Agreement without the
consent of each other party hereto, except that Compaq may transfer or assign
its rights and obligations contained herein relating to the purchase of the
common stock of CMGI to a credit worthy Subsidiary of Compaq that is an
"accredited investor" as such term is defined in Rule 501(a) promulgated under
the Securities Act.

      Section 13.05.  Governing Law.  This Agreement shall be governed by and
construed in accordance with the law of the State of New York, without regard to
the conflicts of law rules of such state.

     Section 13.06. Jurisdiction. Except as otherwise expressly provided in this
Agreement, the parties hereto agree that any suit, action or proceeding seeking
to enforce any provision of, or based on any matter arising out of or in
connection with, this Agreement or the transactions contemplated hereby shall be
brought in the United States District Court for the Southern District of New
York or any New York State court sitting in New York City, so long as one of
such courts shall have subject matter jurisdiction over such suit, action or
proceeding, and that any cause of action arising out of this Agreement shall be
deemed to have arisen from a transaction of business in the State of New York,
and each of the parties hereby irrevocably consents to the jurisdiction of such
courts (and of the appropriate appellate courts therefrom) in any such suit,
action or proceeding and irrevocably waives, to the fullest extent permitted by
law, any objection that it may now or hereafter have to the laying of the venue
of any such suit, action or proceeding in any such court or that any such suit,
action or proceeding which is brought in any such court has been brought in an
inconvenient forum. Process in any such suit, action or proceeding may be served
on any party anywhere in the world, whether within or without the jurisdiction
of any such court. Without limiting the foregoing, each party agrees that
service of process on such party as provided in Section 13.01 shall be deemed
effective service of process on such party.

      Section 13.07.  WAIVER OF JURY TRIAL.  EACH OF THE PARTIES HERETO HEREBY
IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING
ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED
HEREBY.

      Section 13.08. Counterparts; Third Party Beneficiaries. This Agreement may
be signed in any number of counterparts, each of which shall be an original,
with the same effect as if the signatures thereto and hereto were upon the same
instrument. This Agreement shall become effective when all parties hereto shall
have received a counterpart hereof signed by all other parties hereto. No

                                       23
<PAGE>

provision of this Agreement is intended to confer upon any Person other than the
parties hereto any rights or remedies hereunder.

      Section 13.09. Entire Agreement. This Agreement and the other
Restructuring Agreements (and the agreements and documents executed in reference
to the other Restructuring Agreements) constitutes the entire agreement between
the parties with respect to the subject matter of this Agreement and supersedes
all prior agreements and understandings, both oral and written, between the
parties with respect to the subject matter of this Agreement.

      Section 13.10. Captions. The captions herein are included for convenience
of reference only and shall be ignored in the construction or interpretation
hereof.

                                      24

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their respective authorized officers as of the day and year
first above written.

                                       CMGI, INC.

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

                                       NAVISITE, INC.

                                       By: /s/ Patricia Gilligan
                                          --------------------------------------
                                          Name: Patricia Gilligan
                                          Title: President and Chief Executive
                                                 Officer

                                       ALTAVISTA COMPANY
                                       By: /s/ David H. Bills
                                          --------------------------------------
                                          Name: David H. Bills
                                          Title: Vice President, Operations

                                        COMPAQ COMPUTER CORPORATION
                                        By: /s/ Ben Wells
                                           -------------------------------------
                                           Name: Ben Wells
                                           Title: V.P. Corporate Treasurer

                                         COMPAQ FINANCIAL SERVICES CORPORATION
                                         By: /s/ Edward W. Andrews, Jr.
                                            ------------------------------------
                                            Name: Edward w. Andrews, Jr.
                                            Title: Vice President and
                                                   Managing Director

                                       25

<PAGE>

                                          COMPAQ FINANCIAL SERVICES
                                            COMPANY
                                          By: /s/ Edward W. Andrews, Jr.
                                             -----------------------------------
                                             Name: Edward W. Andrews, Jr.
                                             Title: Vice President and
                                                    Managing Director

                                           COMPAQ FINANCIAL SERVICES
                                             CANADA CORPORATION
                                          By: /s/ Edward W. Andrews, Jr.
                                             -----------------------------------
                                             Name: Edward W. Andrews, Jr.
                                             Title: Vice President and
                                                    Managing Director

                                       26

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