Document:

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                                                                  Exhibit 10.16
                        STRATEGIC BUSINESS AGREEMENT
                               BY AND BETWEEN
                         COMPAQ COMPUTER CORPORATION
                                    AND
                                 CMGI, INC.

     This Strategic Business Agreement (the "Agreement") is entered into as of
this 29th day of June, 1999 by and between Compaq Computer Corporation, a
Delaware corporation (hereinafter referred to as "Compaq," as such term is
defined below), and CMGI, Inc., a Delaware corporation (hereinafter referred to
as "CMGI," as such term is defined below).

     WHEREAS,  Compaq is the largest global supplier of computer systems and a
market leader in delivering Internet-enabled personal computers to consumers;

     WHEREAS,  CMGI is a recognized leader in the Internet economy with a
portfolio of synergistic Internet enterprises focused on  providing solutions
and creating compelling Internet user experiences;

     WHEREAS, Compaq and CMGI desire to work together to define mutually
beneficial vehicles for the strategic bundling, distribution, and promotion of
CMGI products and services on Compaq's products.

     NOW THEREFORE, in consideration of the premises, the mutual agreements and
covenants contained herein, and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

1.   DEFINITIONS

          The following definitions shall apply throughout this Agreement:

     1.1  "Affiliate" shall mean, with respect to any specified Person, any
          other Person that directly or indirectly through one or more
          intermediaries, Controls, is Controlled by, or is under common
          Control with, such specified Person.

     1.2  "Aggregate User Data" shall mean (i) general User transactional or
          behavioral tracking data that is not Registration Data (including
          without limitation clickstreams, purchasing patterns, connect time
          and number of visits); (ii) anonymous User data, which may include
          individual User information without personal identification; and
          (iii) any data consisting of
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          any combination of Registration Data, anonymous User data, and/or
          general User transactional or behavioral data that does not contain
          or constitute Registration Data. All such data in all instances
          shall be aggregated over all relevant Users redirected from Products
          or Compaq Sites.

     1.3  "Agreement" shall have the meaning set forth in the preamble.

     1.4  "Appliance" shall mean any consumer-oriented device designed or
          intended for execution of a specific application or related set of
          applications.

     1.5  "Closing Date" shall be the date on which the transactions
          contemplated by the Purchase and Contribution Agreement between the
          parties dated of even date herewith have been satisfied or waived.

     1.6  "CMGI" shall mean CMGI, Inc. and its Affiliates.

     1.7  "CMGI Site" shall mean any Site owned by CMGI or any CMGI Affiliate.

     1.8  "Compaq" shall mean Compaq Computer Corporation and its Affiliates.

     1.9  "Compaq's Area of Business" shall mean all business segments in
          which Compaq sells goods or services during the applicable period.

     1.10 "Compaq Labs" shall mean the [***]

     [***] Denotes language for which AltaVista has requested confidential
     treatment pursuant to the rules and regulations of the Securities Act of
     1933, as amended.

     1.11 "Compaq Site" shall mean any Site owned by Compaq or any Compaq
          Affiliate, excluding any CMGI Site.

     1.12 "Control" or "Controlled" shall mean that a corporation or entity
          owns or directly or indirectly controls more than fifty percent
          (50%) of the voting stock or other ownership interest of another
          corporation or entity.

     1.13 "including" shall mean including without limitation.

     1.14 "Instant Internet Keyboard Button" shall mean a single button,
          accessible by means of a keyboard or other input device as agreed
          between the parties, that enables the functionality to access and
          direct an end-user to a designated URL and/or a designated URLs
          redirector.

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     1.15 "Internet Browser" shall mean programs that allow for browsing the
          Internet including but not limited to Microsoft Internet Explorer(R)
          and Netscape Navigator(R). "Internet Browser" shall not include
          browsers that are embedded or included with proprietary networks
          such as AOL, Compuserve or Prodigy.

     1.16 "Link" shall mean a URL (or an icon, logo, highlighted or colored
          text, figure or image representing a URL) on which a user may point
          and click, or otherwise send a command, to hyperlink to another Site
          or page.

     1.17 "Marks" shall mean trademarks, service marks, Internet domain names,
          trade names, logos and designs, together with applications and
          registrations of the foregoing.

     1.18 "Marketing Addendum" shall mean a statement of the marketing
          strategies of both parties, including joint marketing and promotion
          plans, which shall be agreed to and implemented by the Executive
          Coordinators prior to each Compaq product sales cycle, in accordance
          with the schedules determined by the Executive Coordinators.
          Marketing Addenda shall, at a minimum, contain reference to the
          number and configuration of any Instant Internet Keyboard Buttons on
          Products intended for sale in the next product cycle, including
          where appropriate reference to the intended Links to CMGI Sites.

     1.19 "Person" shall mean any individual, bank, partnership, firm,
          corporation, limited liability company, association, trust, or any
          other entity or organization.

     1.20 "Product" shall mean Presario-branded (including successor brands or
          sub-brands) consumer desktop and portable personal computers.
          "Product" as used herein shall not include commercial or enterprise
          computing devices, networking equipment, or consumer Appliances,
          unless otherwise specified.

     1.21 "Proprietary Online Service Provider" shall mean any provider of
          Internet access or other network bandwidth to end-user customers for
          whom the definition, allocation, distribution or programming of the
          Instant Internet Keyboard Buttons or other Internet addressing
          functionality is a defined requirement of distribution or resale of
          its service.

     1.22 "Redirect Script" shall mean a set of instructions that accepts
          Internet traffic and redirects the traffic to another location.

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     1.23 "Registration Data" shall mean any data collected by a party,
          through registration or by any other means, that contains
          information that could be used to determine the identity of a User.

     1.24 "Search Engine" shall mean a general electronic information location
          tool that (i) is accessible through the World Wide Web; (ii) accepts
          a query in the form of words; and (iii) responds to the query by
          indexing World Wide Web pages and using such index to present URL
          addresses of World Wide Web pages that are relevant to the asserted
          query.

     1.25 "Site" shall mean a page or group of pages on the World Wide Web or
          any successor online network organized under a single domain name.

     1.26 "Term" shall have the meaning set forth in Section 6.1.

     1.27 "User" shall mean any person who navigates to a Site.

2.   COMPAQ OBLIGATIONS

     2.1  Internet Traffic
          ----------------

          2.1.1  Obligations of Compaq. During the Term, Compaq shall
                 ---------------------
                 preprogram each Product prior to sale so that activation of
                 any Instant Internet Keyboard Button automatically loads only
                 the Compaq Redirect Script URLs. For Products with seven (7)
                 or more Instant Internet Keyboard Buttons, Compaq shall
                 program Compaq Redirect Script URLs to immediately direct
                 traffic from four (4) Instant Internet Keyboard Buttons to
                 the applicable CMGI Site as directed by CMGI, provided that
                 such CMGI Sites shall be subject to Compaq's review and
                 approval for suitability and appropriateness for Compaq
                 customers, which approval shall not be unreasonably denied.
                 The process for such approval shall be defined in the
                 Marketing Addenda. In the event that a Product is equipped
                 with fewer than seven (7) Instant Internet Keyboard Buttons,
                 the number of Redirect Script URLs directed to CMGI Sites may
                 be fewer than four (4), but in any event shall comprise not
                 less than fifty percent (50%) of the total number of Instant
                 Internet Keyboard Buttons. Users shall be able to reconfigure
                 the Instant Internet Keyboard Buttons. For any Product for
                 which an Instant Internet Keyboard Button is programmed or
                 redirected to a default portal start page, the "Home" Link of
                 the Internet Browser shall also be linked or redirected to
                 the same default portal start page.

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          2.1.2  Additional Obligations. It is Compaq's intention to redirect
                 ----------------------
                 Internet traffic to appropriate CMGI Sites from all Compaq
                 products that are equipped with Instant Internet Keyboard
                 Buttons (including commercial PC products and Appliances) to
                 the same extent as described in Section 2.1.1, subject to
                 availability and suitability of appropriate CMGI Sites for
                 the specific customer segment targeted. Subject to the
                 applicable obligations and exclusions set forth in this
                 Article 2, for Compaq-only branded Appliances, Compaq shall
                 program Instant Internet Keyboard Buttons, if any, in the
                 same manner and quantity as set forth in Section 2.1.1, to
                 the extent that CMGI Sites are applicable and competitive in
                 price and performance.

          2.1.3  Excluded Products. The products subject to the provisions of
                 -----------------
                 Sections 2.1.1 and 2.1.2 shall not include (i) products that
                 cannot be configured pursuant to this Article because of
                 local law restrictions, (ii) products intended for sale in
                 geographic regions in which CMGI does not have a local Site
                 that is translated, localized, relevant and fully operational
                 in the specific international market, (iii) products designed
                 or manufactured specifically for a sponsor or affinity
                 program that requires the programming of a proprietary
                 default start page, or (iv) products for which Compaq's
                 customers have requested that pre-programmed Internet
                 functionality not be included. The parties shall work
                 together to coordinate international expansion and roll-out
                 plans, including identification of specific local
                 requirements and time frames for implementation.

          2.1.4  Exclusions. Compaq's obligations pursuant to this Section 2:
                 ----------
                 (i) are subject to contractual obligations with third parties
                 existing as of the date of execution of this Agreement, and
                 (ii) shall not apply to products or services provided by or
                 for a Proprietary Online Service Provider. Compaq shall
                 provide CMGI with a list of all such contractual obligations
                 within 30 days of the execution of this Agreement, and Compaq
                 shall use its best efforts to minimize the adverse impact of
                 such contractual obligations upon Compaq's obligations
                 hereunder. If Compaq engages in a distribution agreement with
                 any Proprietary Online Service provider, Compaq shall as part
                 of the process use its best efforts to explore opportunities
                 with CMGI and the Proprietary Online Service Provider to
                 engage CMGI as a preferred provider of portal solutions or
                 other content. In addition, Compaq's obligations pursuant to
                 this Section 2 shall terminate, at Compaq's election, if
                 after January 1, 2000, the Primary CMGI Portal Site fails to
                 be one of the twelve (12) most

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                 trafficked web sites for four (4) consecutive months as
                 measured in terms of unique visitors by Media Metrix, or such
                 other comparable industry metric as may be agreed between the
                 parties. The Primary CMGI Portal Site shall mean, for
                 purposes of this Agreement, the AltaVista, Shopping.com, and
                 Zip2 Sites (and any future Sites owned by AltaVista or any
                 subsidiary owned or Controlled by AltaVista) considered in
                 the aggregate. Within twenty-four (24) months of the Closing
                 Date, CMGI intends that AltaVista will be among the top three
                 (3) portal Sites as measured by Media Metrix.

     2.2  Sale of Compaq Equipment. Subject to CMGI entering into Compaq's
          ------------------------
          standard reseller agreement, during the Term, Compaq shall make
          available to CMGI Compaq hardware and equipment for resale [***]

          [***] Denotes language for which AltaVista has requested
          confidential treatment pursuant to the rules and regulations of the
          Securities Act of 1933, as amended.

     2.3  [***]. Compaq hereby designates CMGI as a [***] It is Compaq's
          -----
          intention to promote, demonstrate, and display CMGI's companies and
          Sites on Compaq Sites and/or Compaq products, as further defined by
          mutual agreement of the parties.

          [***] Denotes language for which AltaVista has requested
          confidential treatment pursuant to the rules and regulations of the
          Securities Act of 1933, as amended.

     2.4  Designation of Internet Search Service. Subject to contractual
          --------------------------------------
          obligations existing as of the date of execution of this Agreement,
          Compaq shall, and shall cause its Affiliates to, designate the Alta
          Vista Search Engine as the only Search Engine offered by, linked to,
          or promoted by each Compaq Site, provided that AltaVista maintains a
          competitive Search Engine service, as determined by mutually agreed
          upon industry competitiveness standards. Compaq shall provide CMGI
          with a list of all such contractual obligations within 30 days of
          the execution of this Agreement, and Compaq shall use its best
          efforts to minimize the adverse impact of such contractual
          obligations upon Compaq's obligations hereunder. Compaq shall state
          on each Compaq Site that searches are "Powered By AltaVista." For
          all products that contain Instant Internet Keyboard Buttons or other
          features (including the Internet Browser, subject to authorization
          from the Internet Browser licensor) that are specifically labeled or
          otherwise identifiable as dedicated to a Search Engine, Compaq shall
          not redirect users to any other Search Engine.

                     *                *              *

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             *                   *                    *

     2.7  Distribution Through Compaq Site Links. It is Compaq's intent to
          --------------------------------------
          promote certain CMGI Sites through Links on Compaq Sites, subject to
          Compaq's qualification and acceptance criteria and product marking
          requirements, and further subject to negotiation of acceptable terms
          and conditions including license rights, pricing, and compatibility.

3.   CMGI OBLIGATIONS

     3.1  Revenue Share
          -------------

          3.1.1  During the Term, CMGI shall pay to Compaq a fee based on the
                 number of redirect messages directed to CMGI Sites from
                 Compaq, either directly or through Compaq's Redirect Script
                 Server (the "Redirect Fee"). The amount of the Redirect Fee
                 due to Compaq shall be as follows:

                 <TABLE>
                 <CAPTION>

                 Time Period                         $ per redirect
                 -----------                         --------------
                 <S>                                 <C>
                 Closing Date - [***]                  [***]
                 [***]                                 [***]
                 [***]                                 [***]
                 </TABLE>

          [***] Denotes language for which AltaVista requested confidential
          treatment pursuant to the rules and regulations of the Securities
          Act of 1933, as amended.

          3.1.2  Payment of the Redirect Fee shall be due to Compaq on a
                 monthly basis, no later than the last day of each month for
                 the previous month's traffic. CMGI shall provide to Compaq,
                 with each payment, a full report of User traffic in a level
                 of detail adequate to support the accuracy of the monthly
                 payment.

          3.1.3  No later than March 31, 2001, the parties shall agree to an
                 appropriate revenue target for the time period June 1, 2001
                 through March 31, 2002. CMGI shall have the option to extend
                 the Agreement for one additional year based on the same
                 Redirect Fee

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                 schedule listed in Section 3.1.1 in effect as of the previous
                 year if the agreed upon revenue target is met or exceeded,
                 and if the Primary CMGI Portal Site is among the top five (5)
                 trafficked Sites, as determined by MediaMetrix. If the
                 revenue target is not met, CMGI may, at its option, pay to
                 Compaq an "option fee," calculated as the difference between
                 the revenue target and the actual revenue for the period.
                 Upon payment of the option fee, CMGI may extend the Agreement
                 for one additional year on the same terms as if the revenue
                 target was achieved. Each subsequent year, prior to March 31,
                 the parties shall agree to an appropriate revenue and traffic
                 target for qualification for an additional one-year renewal
                 option.

          3.1.4  Compaq shall have the right to inspect and audit, upon five
                 (5) days notice, during normal business hours and not more
                 than four times per year, all of CMGI's records and books of
                 account insofar as they relate to Redirect Fee, provided that
                 any such audit and inspection shall be conducted by an
                 independent third-party accounting firm on Compaq's behalf.
                 The costs of said inspection and audit shall be borne solely
                 by Compaq unless accounting errors amounting to five percent
                 (5%) or more of the applicable total are found to Compaq's
                 disadvantage, in which case CMGI shall promptly pay the
                 entire cost of said inspection and audit. CMGI shall at all
                 times maintain such books and records, or true duplicates
                 thereof, at its primary or registered offices.

     3.2  The Sites to which Compaq redirects CMGI traffic shall be co-branded
          and customized in accordance with marketing plans to be determined
          by the parties. CMGI will not display any advertisement or include
          any other promotional element of any party (other than Compaq) in
          Compaq's Area of Business on any pages or CMGI products that are
          linked directly to or redirected directly from Compaq Sites or
          Products.

                     *                    *               *

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                 *                   *                 *

     3.6  During the Term, the AltaVista Search Engine (or its successor)
          shall be run exclusively on a Compaq hardware platform, subject to
          ability of the hardware to meet competitive price/performance
          specifications.

     3.7  CMGI agrees to work with Compaq to develop [***], with the goal that
          CMGI shall launch the [***] during the [***].

          [***] Denotes language for which AltaVista has requested
          confidential treatment pursuant to the rules and regulations of the
          Securities Act of 1933, as amended.

4.   MUTUAL OBLIGATIONS

     4.1  [***]

          [***] Denotes language for which AltaVista has requested
          confidential treatment pursuant to the rules and regulations of the
          Securities Act of 1933, as amended.

     4.2  Relationship Management.

          4.2.1  Executive Coordinator. Compaq and CMGI shall each designate a
                 ---------------------
                 corporate officer who is at least a Vice President as an
                 Executive Coordinator who shall be responsible for all overall
                 matters pertaining to this Agreement. The initial Executive
                 Coordinator for CMGI shall be [***]. The initial Executive
                 Coordinator for Compaq shall be [***]. The responsibilities of
                 the Executive Coordinators are as follows:

                 [***] Denotes language for which AltaVista has requested
                 confidential treatment pursuant to the rules and regulations
                 of the Securities Act of 1933, as amended.

                 4.2.1.1   Administer and coordinate the overall aspects of
                 this Agreement and the strategic relationship between the
                 parties;

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                 4.2.1.2   Arrange meetings, visits and consultations between
                 the parties concerning matters related to this Agreement,
                 including but not limited to all required quarterly and/or
                 annual business reviews; and

                 4.2.1.3   Review and approve plans for marketing programs to
                 be administered under the Joint Marketing Fund. All
                 expenditures from the Joint Marketing Fund must be approved
                 by both Executive Coordinators.

          4.2.2  Quarterly Business Reviews. Both parties agree to meet at
                 --------------------------
                 least once every calendar quarter to review the basic
                 business terms and the business and marketing plans for the
                 next quarter. Topics to be addressed in each Quarterly
                 Business Review shall include, but shall not be limited to
                 the following: Strategic Plans/New Products and Services,
                 Advertising and Promotion Opportunities, Use of Joint
                 Marketing Funds, Performance Measurement of Existing Joint
                 Programs, Contract or Relationship Issues, including
                 negotiation and performance of Marketing Addenda.

          4.2.3  Changes in Coordinators. Either party may replace any of the
                 -----------------------
                 people referenced in this Section by delivering written
                 notice of the change to the other party. The notice must be
                 signed by either the Executive Coordinator of the party
                 making the change, or by an authorized signatory of that
                 party. The notice shall set forth the name, business address
                 and telephone number of the replacement.

          4.2.4  Program Management. Each party shall make available
                 ------------------
                 sufficient facilities, resources and access to permit the
                 establishment of an on-site dedicated program management
                 office, as mutually agreed by the Executive Coordinators.

                      *                *               *

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                  *                    *                      *

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                       *                   *                    *

     4.7  User Data. Each party shall provide to the other any Aggregate User
          ---------
          Data that it collects from Users who are directed to CMGI Sites from
          Compaq Sites or Products. All Aggregate User Data shall be made
          available without the imposition of additional fees or obligations.
          Subject to mutual agreement of the parties, the parties further
          intend to share Registration Data to the extent such information is
          collected from or related to the CMGI Sites directed from Compaq
          Sites or Products, provided that sharing of Registration Data shall
          be limited by and subject to the respective company privacy
          policies.

     4.8  Compaq Labs.
          -----------

                  *                      *                    *

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          4.8.2  New Search Technology.  From time to time Compaq may disclose
                 ---------------------
                 to CMGI new search technology which might be of interest to
                 AltaVista or CMGI for incorporation on the AltaVista Site.
                 CMGI shall promptly make its interest known. CMGI shall have
                 an option period of thirty (30) days, from the date of
                 disclosure, to acquire a non-exclusive license to use such
                 search technology on the AltaVista Site for a one-time
                 payment which will be identified by Compaq. Compaq and CMGI
                 each agree to use reasonable best efforts to enter into a
                 mutually acceptable license agreement within such thirty (30)
                 day period. If CMGI wants to obtain rights beyond a non-
                 exclusive license to use the identified search technology,
                 the parties will use reasonable best efforts to complete a
                 mutually acceptable license agreement within sixty (60) days.
                 Unless extended by mutual agreement in writing, after the
                 option period lapses Compaq can offer such search technology
                 to any third parties under any terms and conditions. In no
                 event shall this Agreement be interpreted as requiring Compaq
                 to provide any research and development services for CMGI,
                 unless set forth in a separate agreement.

                        *                *                 *

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5.   TRADEMARKS

     5.1  Use of CMGI Marks. CMGI hereby grants to Compaq a non-exclusive,
          -----------------
          royalty-free license, in jurisdictions in which CMGI has such
          rights, to use, reproduce, distribute and display the Marks owned by
          CMGI in connection with its performance of the terms of this
          Agreement.

     5.2  Use of Compaq Marks. Compaq and its Affiliates hereby grant to CMGI
          -------------------
          a non-exclusive, royalty-free license, in jurisdictions in which
          Compaq has such rights, to use the Marks owned by Compaq in
          connection with its performance of the terms of this Agreement.

     5.3  Quality Control. Each party shall have the right to exercise quality
          ---------------
          control over the use of its Marks and the products and services with
          which the Marks are used by the other party to the degree necessary,
          in the sole opinion of the owner of such Marks, to maintain the
          validity and enforceability of such Marks and to protect the rights
          in such Marks and the goodwill associated therewith. Each party
          shall, in their use of the other's Marks adhere to a level of
          quality, at least as high as that used by such party in connection
          with its use of its own Marks. In the event that the owner of a Mark
          finds that use of the Mark by the other party in the reasonable
          opinion of owner of such Mark materially threatens the goodwill of
          the Mark or the rights in the Mark, the licensee of such Mark shall,
          upon notice from such owner, immediately, and no later than ten (10)
          days after receipt of such owner's notice, take all measures
          reasonably necessary to correct the deviations or misrepresentations
          in, or misuse of, the respective items.

     5.4  Trademark Usage. Each party shall use the other's Marks in
          ---------------
          accordance with sound trademark and trade name usage principles and
          in compliance with all applicable laws and regulations of the United
          States, including without limitation all laws and regulations
          relating to the maintenance of the validity and enforceability of
          such Marks and shall not use the Marks in any manner which might
          tarnish, disparage, or reflect adversely on the Marks or the owners
          of such Marks. Each party shall use, in connection with the other's
          Marks, all legends, notices and markings as required by law. Neither
          party may materially alter the appearance of another's Marks in any
          advertising, marketing, distribution, or sales materials, or any
          other publicly distributed materials.

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6.   TERM AND TERMINATION

     6.1  Term. This Agreement will become effective as of the Closing Date
          ----
          and shall, unless sooner terminated as provided below or as
          otherwise agreed, remain effective until May 30, 2002.

     6.2  Termination by Mutual Consent. This Agreement may be terminated by
          -----------------------------
          mutual written consent.

     6.3  Termination for Insolvency. Notwithstanding the foregoing, this
          --------------------------
          Agreement may be terminated by either party immediately upon notice
          if the other party: (i) becomes insolvent; (ii) files a petition in
          bankruptcy; or (iii) makes an assignment for the benefit of its
          creditors.

7.   REPRESENTATIONS AND WARRANTIES

     7.1  Compaq Warranties.  Compaq hereby represent and warrant to CMGI as of
          -----------------
          the date hereof that:

          7.1.1  Compaq is a corporation duly organized and validly existing
                 under the laws of the state of its 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;

          7.1.2  The execution, delivery and performance by Compaq of this
                 Agreement are within the corporate powers of Compaq and has
                 been duly authorized by all necessary corporate action on the
                 part of Compaq. This Agreement constitutes a valid and
                 binding agreement of Compaq enforceable against Compaq in
                 accordance with its terms;

          7.1.3  The execution, delivery and performance by Compaq of this
                 Agreement requires no action by or in respect of, or filing
                 with, any governmental body, agency or official; and

          7.1.4  The execution, delivery and performance by Compaq of this
                 Agreement do not and will not (i) violate the organizational
                 documents of Compaq, (ii) violate any applicable law,
                 judgment, injunction, order or decree, or (iii) require any
                 notice or consent or other action by any person or entity
                 under, constitute a default under, or give rise to any right
                 of termination, cancellation or acceleration of any right or
                 obligation of Compaq or to a loss of

                                       15
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                 any benefit to which Compaq is entitled under, any agreement
                 or other instrument binding upon Compaq or any license,
                 franchise, permit or other similar authorization held by
                 Compaq.

     7.2  CMGI Warranties.  CMGI hereby represents and warrants to Compaq as of
          ---------------
          the date hereof that:

          7.2.1  CMGI is a corporation duly organized and validly existing
                 under the laws of the state of its 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;

          7.2.2  The execution, delivery and performance by CMGI, Inc.
                 (excluding its Affiliates) of this Agreement are within the
                 corporate powers of CMGI, Inc. (excluding its Affiliates) and
                 have been duly authorized by all necessary corporate action
                 on the part of CMGI, Inc. (excluding its Affiliates). This
                 Agreement constitutes a valid and binding agreement of CMGI,
                 Inc. (excluding its Affiliates) enforceable against CMGI,
                 Inc. (excluding its Affiliates) in accordance with its terms;

          7.2.3  CMGI, Inc. shall cause its Affiliates to adhere to the terms
                 of this Agreement;

          7.2.4  The execution, delivery and performance by CMGI of this
                 Agreement require no action by or in respect of, or filing
                 with, any governmental body, agency or official; and

          7.2.5  The execution, delivery and performance by CMGI of this
                 Agreement do not and will not (i) violate the organizational
                 documents of CMGI, (ii) violate any applicable law, judgment,
                 injunction, order or decree, or (iii) require any notice or
                 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
                 CMGI or to a loss of any benefit to which CMGI is entitled
                 under, any agreement or other instrument binding upon CMGI or
                 any license, franchise, permit or other similar authorization
                 held by CMGI.

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8.   LIMITATIONS OF LIABILITY

     8.1  Limitation of Liability. Except for indemnification obligations, if
          -----------------------
          any, of a party pursuant to Article 10 , no party shall be liable to
          another party or any other person or entity for special, incidental,
          consequential, or indirect damages (including loss of good will or
          business profits), or exemplary or punitive damages. No officer,
          director, manager, member, or employee of any party shall have any
          personal liability under this Agreement and the other parties hereby
          hold such persons harmless for any liability hereunder.

     8.2  Limitation of Warranties. Except as expressly set forth in this
          ------------------------
          Agreement, each party expressly disclaims all warranties, express or
          implied, including warranties of merchantability and fitness for a
          specific purpose. Except as expressly set forth in this Agreement,
          no party endorses, warrants, or guarantees any product or service
          provided hereunder.

9.   INDEMNIFICATION

     9.1  Indemnification by CMGI. Except as provided in this Article, CMGI
          -----------------------
          will indemnify and hold Compaq and its Affiliates, officers,
          directors and employees harmless from and against any and all
          damages resulting from or arising out of (a) the CMGI Sites or any
          other activities of CMGI, including infringement of any intellectual
          property rights of any third person; (b) any misrepresentation or
          breach of representation or warranty of CMGI contained herein; or
          (c) any breach of any covenant or agreement to be performed by CMGI
          hereunder. Notwithstanding anything to the contrary in this Section,
          CMGI shall not have any obligation to indemnify Compaq for any
          damages for which Compaq is obligated to indemnify CMGI under the
          Assignment Agreement dated of even date herewith.

     9.2  Indemnification by Compaq. Compaq will indemnify and hold CMGI and
          -------------------------
          its Affiliates, officers, directors and employees harmless from and
          against any and all damages resulting from or arising out of (a) the
          Compaq Sites or any other activities of Compaq, including
          infringement of any intellectual property rights of any third
          person; (b) any misrepresentation or breach of representation or
          warranty of Compaq contained herein; or (c) any breach of any
          covenant or agreement to be performed by Compaq or its respective
          Affiliates hereunder.

                                       17
<PAGE>

     9.3  Notice of Indemnification. A party seeking indemnification pursuant
          -------------------------
          to this Article (an Indemnified Party) from or against the assertion
          of any claim by a third person (a Third Person Assertion) will give
          prompt notice to the party from whom indemnification is sought (the
          Indemnifying Party); provided that failure to give prompt notice
                               --------
          will not relieve the Indemnifying Party of any liability hereunder
          (except to the extent the Indemnifying Party has suffered actual
          material prejudice by such failure).

     9.4  Assumption of Defense. Within five (5) business days of receipt of
          ---------------------
          notice from the Indemnified Party pursuant to this Section, the
          Indemnifying Party will have the right, exercisable by written
          notice to the Indemnified Party, to assume the defense of a Third
          Person Assertion. If the Indemnifying Party assumes such defense,
          the Indemnifying Party may select counsel, which counsel will be
          reasonably acceptable to the Indemnified Party.

     9.5  Appointment of Counsel. After notice from the Indemnifying Party to
          ----------------------
          the Indemnified Party of its election to assume the defense of such
          Third Party Assertion, the Indemnifying Party shall not be liable to
          the Indemnified Party under this Article for any legal or other
          expenses subsequently incurred by the Indemnified Party in
          connection with the defense thereof other than reasonable costs of
          investigation, provided, that if there may be reasonable legal
                         --------
          defenses available to it that are different from or in addition to
          those available to the Indemnifying Party the reasonable fees,
          disbursements and other charges of counsel for the Indemnified Party
          will be at the expense of the Indemnifying Party or parties. It is
          understood that the Indemnifying Party or parties shall not, in
          connection with any proceeding or related proceedings in the same
          jurisdiction, be liable for the reasonable fees, disbursements and
          other charges of more than one separate firm of attorneys (in
          addition to any local counsel) at any one time for all such
          Indemnified Party or parties.

     9.6  Failure to Defend. If the Indemnifying Party (a) does not assume the
          -----------------
          defense of any Third Person Assertion in accordance with this
          Article; or (b) having so assumed such defense, unreasonably fails
          to defend against such Third Person Assertion, then, upon five (5)
          days written notice to the Indemnifying Party, the Indemnified Party
          may assume the defense of such Third Person Assertion. In such
          event, the Indemnified Party will be entitled under this Article as
          part of its damages to indemnification for the costs of such
          defense.

     9.7  Settlement. The party controlling the defense of a Third Person
          ----------
          Assertion will have the right to consent to the entry of judgment
          with respect to, or otherwise settle, such Third Person Assertion
          with the prior written

                                       18
<PAGE>

          consent of the other party, which consent will not be unreasonably
          withheld; provided that such other party may withhold its consent if
                    -------------
          any such judgment or settlement imposes a monetary obligation on
          such other party that is not covered by the indemnification, imposes
          any material non-monetary obligation, or does not include an
          unconditional release of such other party and its Affiliates from
          all claims of the Third Person Assertion.

     9.8  Participation. The Indemnifying Party and the Indemnified Party will
          -------------
          cooperate, and cause their Affiliates to cooperate, in the defense
          or prosecution of any Third Person Assertion. The Indemnifying Party
          or the Indemnified Party, as the case may be, will have the right to
          participate, at its own expense, in the defense or settlement of any
          Third Person Assertion.

10.  CONFIDENTIAL INFORMATION.

     10.1 Definition of Confidential Information. Confidential Information
          --------------------------------------
          shall mean any information (whether or not in writing) relating to
          or disclosed in the course of the performance of this Agreement,
          which is marked as "confidential" or which is not generally known to
          the public or in the trade and is or should be reasonably understood
          to be confidential or proprietary to the disclosing party, including
          without limitation (i) marketing and sales information and (ii)
          other documentation and any analyses, compilations, studies or other
          documents incorporating or developed from Confidential Information.
          Confidential Information shall not include information (a) already
          known to the receiving party lawfully and not in violation of any
          agreement or understanding (whether or not in writing) relating to
          the confidentiality thereof, (b) disclosed in published materials,
          (c) obtained from any third party lawfully and not in violation of
          any agreement or understanding (whether or not in writing) relating
          to the confidentiality thereof, or (d) independently developed by
          the receiving party without the use or inclusion of any Confidential
          Information. The receiving party shall not be in breach of its
          obligations with respect to Confidential Information hereunder in
          the event the disclosure of any Confidential Information is required
          by law, provided that prior to any such disclosure by a receiving
                  --------
          party, the disclosing party is given ample notice to enable it to
          move for a protective order.

     10.2 Confidential Information. Each party hereto acknowledges that all
          ------------------------
          title and interest, including all patents, copyrights, trade secrets
          and other intellectual property rights, in the disclosing party's
          (the "Disclosing Party") Confidential Information is the exclusive
          property of the Disclosing

                                       19
<PAGE>

          Party. Each party further acknowledges that the Disclosing Party's
          Confidential Information is proprietary and a trade secret of the
          Disclosing Party. Each party agrees neither to do nor to permit any
          act which may in any way jeopardize or be detrimental to the
          validity of the Disclosing Party's patent, copyright, trade secret
          or other rights in the Confidential Information.

     10.3 Confidentiality. Each party shall use its best efforts to maintain
          ---------------
          the confidentiality of any Confidential Information it receives,
          including taking such steps as such party takes to maintain the
          confidentiality of its own Confidential Information.

     10.4 Return of Confidential Information. Upon the termination or
          ----------------------------------
          expiration of this Agreement for any reason, each party shall at the
          direction of the discloser of such Confidential Information (the
          "Disclosing Party") either return all Confidential Information in
          its possession or destroy such Confidential Information and certify
          in writing to the Disclosing Party that it has done so.

     10.5 Remedies for Breach of Confidentiality. It is understood and agreed
          --------------------------------------
          by both parties that in the event of a breach of this Article,
          damages may not be an adequate remedy and either party shall be
          entitled to injunctive relief to restrain any such breach,
          threatened or actual.

     10.6 Survival. Each party's respective obligations hereunder to protect
          --------
          Confidential Information shall survive any termination or expiration
          of this Agreement or any license granted hereunder for any reason.

11.  MISCELLANEOUS

     11.1 Governing Law. Any question as to the validity, construction,
          -------------
          performance or effect of this Agreement and the transactions to
          which it relates shall be construed in accordance with and subject
          to the substantive laws (as opposed to the conflicts of law
          provisions) of the State of Delaware and, where applicable, the laws
          of the United States.

     11.2 Further Assurances. Subject to the terms and conditions herein
          ------------------
          provided, each of the parties hereto agrees to use their respective
          reasonable best efforts to take, or cause to be taken, all action,
          and to do, or cause to be done, all things necessary, proper or
          advisable under applicable laws and regulations to consummate and
          make effective the transactions contemplated by this Agreement. If
          at any time after the Closing Date any further action is necessary
          or desirable to carry out the purposes of this Agreement,

                                       20
<PAGE>

          the parties hereto shall take or cause to be taken all such
          necessary action, including, without limitation, the execution and
          delivery of such further instruments and documents as may be
          reasonably requested by the other party for such purposes or
          otherwise to consummate and make effective the transactions
          contemplated hereby.

     11.3 Entire Agreement. This Agreement contains the entire understanding
          ----------------
          between CMGI and Compaq with respect to its subject matter and the
          transactions contemplated hereby, supercedes all previous or
          contemporaneous oral or written agreements, negotiations,
          representations or understandings between them with respect thereto,
          and shall not be modified except by a writing of subsequent date
          hereto signed by all parties hereto. Neither the course of conduct
          between the parties nor trade usage shall act to modify or alter the
          provisions of this Agreement.

     11.4 No Waiver. No waiver by any party of a breach of any provision of
          ---------
          this Agreement shall operate as or be deemed to be a waiver of any
          other preceding, or subsequent breach of that provision or of any
          breach of any other provision of this Agreement. The failure of a
          party to insist upon strict adherence to any term of this Agreement
          on one or more occasions shall not be considered a waiver or deprive
          that party of the right thereafter to insist upon strict adherence
          to that term or any other term of this Agreement. Any waiver must be
          in a writing of subsequent date hereto executed by the waiving party.

     11.5 Partial Invalidity. If any portion of the Agreement, or the
          ------------------
          application thereof in any circumstances, shall be held to be
          illegal, invalid or unenforceable in any respect by a final or
          unappealable order, decree or judgment of any court, this Agreement
          shall be constructed as if such invalid, illegal or unenforceable
          provision had never been contained herein within the jurisdiction of
          such court and the Agreement shall otherwise remain in full force
          and effect in such jurisdiction and in its entirety in other
          jurisdictions. Additionally, in lieu of each such illegal, invalid
          or unenforceable provision, there shall, within the jurisdiction of
          such court finding such illegality, invalidity or unenforceability,
          be added automatically as part of this Agreement a provision as
          similar to such former provision as shall be legal, valid and
          enforceable.

     11.6 Section Headings. Section headings used herein are for informational
          ----------------
          purposes only and shall not define nor limit the provisions of this
          Agreement.

     11.7 Successors and Assigns. This Agreement shall be binding upon and
          ----------------------
          inure to the benefit of CMGI, Inc. and its successors and assignees
          and Compaq

                                       21
<PAGE>

           and its successors and assignees permitted hereunder; provided,
           however, that neither party hereto may assign, subcontract,
           transfer or otherwise delegate its rights or obligations hereunder,
           in whole or in part, by operation of law or otherwise, without the
           prior written consent of the other party, which consent shall not
           be unreasonably withheld. Notwithstanding the foregoing, either
           Compaq or CMGI, Inc. may assign its rights or obligations hereunder
           in connection with the sale of all or substantially all of the
           assets of its business related to this Agreement, whether by asset
           purchase, merger or otherwise, unless the intended assignee is a
           competitor of the non-assigning party. In the event of a change of
           Control of the CMGI entity that holds the assets of the Alta Vista
           Search Engine Site, the provisions contained in Section 2.4 hereof
           shall immediately terminate at Compaq's election.

     11.8  Independent Contractors. Each party agrees it is and will be an
           -----------------------
           independent contractor as to the other party and not an agent,
           employee, partner or joint venturer of or with the other party.
           Without limiting the foregoing, no party nor any officer or
           employee of such will have any right to bind any other party, to
           make any representations or warranties on behalf of any other
           party, to accept service of process, to receive notice, or to
           perform any act or thing on behalf of any other party other than as
           expressly authorized by such other party in its sole discretion.

     11.9  Counterparts. This Agreement may be executed in any number of
           ------------
           counterparts, each such counterpart shall be an original
           instrument, and all such counterparts shall together constitute the
           same agreement. Execution may be effectuated by delivery of
           facsimiles of signature pages (and the parties shall follow such
           delivery by prompt delivery or originals of such pages).

     11.10 Press Releases/Statements. Except as may be required by law or by
           -------------------------
           the rules of any national securities exchange, no party hereto
           shall issue a press release or other similar public announcement
           making reference to any other party, such other party's products,
           or the services provided hereunder, unless such party has received
           the approval of the other party with respect to the proposed text
           of such press release or announcement, which approval shall not be
           unreasonably withheld or delayed. No party shall make or publish
           any statement which is, or may be reasonably considered to be,
           disparaging of any other party or its Affiliates, directors,
           employees, products or services.

     11.11 Remedies Cumulative. No remedy conferred upon any of the parties by
           -------------------
           this Agreement is intended to be exclusive of any other remedy, and
           each and every such remedy shall be cumulative and shall be in
           addition to any

                                       22
<PAGE>

           other remedy given hereunder or now or hereafter existing at law or
           in equity.

     11.12 Export Control. Each party acknowledges that data and materials if
           --------------
           any, supplied by one party to the other may be subject to export
           controls under United States law and the applicable export controls
           in other territories. Accordingly, neither party shall export or re-
           export any technical data supplied by the other party, directly or
           through third parties, to any source for use in any country or
           countries in contravention of any export laws, regulations or
           decrees of the United States Government or any agency thereof. Each
           party shall be solely responsible for identifying and complying
           with all laws of any jurisdiction outside the United States
           regarding use of technical data and materials supplied by the other
           party. Each party agrees to obtain all licenses, permits or
           approvals required by any government at that party's sole cost.
           Each party's obligations under this Section shall survive the
           expiration or termination of this Agreement for any reason
           whatsoever.

     11.13 Force Majeure. Except for the failure to make payments when due,
           -------------
           neither party shall be liable to the other by reason of any failure
           of or delay in performance of its obligations under this Agreement
           to the extent such failure or delay is due to circumstances beyond
           its reasonable control, including, without limitation, acts of God,
           acts of the other party, acts of a public enemy, fires, floods,
           wars, civil disturbances, sabotage, accidents, insurrections,
           blockades, embargoes, storms, other acts of nature, explosions,
           damage to its plants, labor disputes (whether or not the employees'
           demands are reasonable and within the party's power to satisfy), or
           acts of any governmental body (whether civil or military, foreign
           or domestic) collectively referred to herein as "Force Majeure",
           nor shall any such failure or delay give the other party the right
           to terminate this Agreement. Each party shall use its best efforts
           to minimize the duration and consequences of any failure of or
           delay in performance resulting from a Force Majeure event.

                   *                  *                    *

     11.15 No Third-Party Beneficiaries. This Agreement is for the sole
           ----------------------------
           benefit of the parties hereto, their Affiliates, and their
           permitted successors and

                                       23
<PAGE>

           assigns. Nothing herein, express or implied, is intended to or
           shall confer upon any person or entity, other than the parties
           hereto, their Affiliates and their permitted successors and
           assigns, any legal or equitable right, benefit or remedy of any
           nature whatsoever under or by reason of this Agreement.

                                       24
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed and delivered
Strategic Business Agreement as of the day and year first above written.

                          CMGI, INC.

                          By: /s/ David S. Wetherell
                             ----------------------------------------------
                          Name: David S. Wetherell
                               --------------------------------------------
                          Title: Chairman of the Board, President and Chief
                                -------------------------------------------
                                 Executive Officer
                                -------------------------------------------

                          COMPAQ COMPUTER CORPORATION

                          By: /s/ Harold F. Enright, Jr.
                             ----------------------------------------------
                          Name: Harold F. Enright, Jr.
                               --------------------------------------------
                          Title: Vice President
                                -------------------------------------------

                                       25<PAGE>

                                                                 Exhibit 10.17

                         STRATEGIC ALLIANCE AGREEMENT

This Strategic Alliance Agreement ("Agreement") is made and entered into as of
the 25th day of June, 1999 (the "Effective Date"), by and between 1stUp.Com
Corporation, a corporation organized and existing pursuant to the laws of the
State of Delaware, with principal offices at 930 Montgomery Street, Suite 200,
San Francisco, California 94133 ("1stUp") and AltaVista Company, a corporation
organized and existing pursuant to the laws of the State of  Delaware, with
principal offices at 529 Bryant Street, Palo Alto, California 94301
("AltaVista"), with respect to the following facts and circumstances:

     WHEREAS:

     1stUp has developed a free Internet access service and AltaVista desires to
offer such service in accordance with the terms of this Agreement;

     1stUp is willing to customize a version of such service with AltaVista
branding in accordance with the terms of this Agreement;

     AltaVista is willing to promote this service to users of AltaVista's World
Wide Web sites in accordance with the terms of this Agreement; and

     AltaVista is willing to make an investment in 1stUp in accordance with the
terms of this Agreement.

     NOW, THEREFORE, the parties hereby agree as follows:

     1.  DEFINITIONS

         1.1   "AltaVista Platform" shall mean a generic set of web pages (or
customized version thereof) that may operate as a Web site. The AltaVista
Platform may contain any or all of the following: an internet index, a search
tool, advertising, or any other feature that might be desirable on an internet
homepage. AltaVista (itself or through its Affiliates) has and will enter into
third party agreements that provide for one or more of the AltaVista Platforms
to be customized and then posted live on the Internet. The customized AltaVista
Platforms may be branded using third parties' names or any combination of
AltaVista's, AltaVista's Affiliates and third parties' names. Furthermore, in
customizing the AltaVista Platforms, any amount of content, advertising or other
features may be added or deleted. For purposes of this Agreement, the term
AltaVista Platform shall also include the portal site currently located at
AltaVista.Com and/or AV.Com, and other similar sites branded with AltaVista's or
its Affiliates' names or trademarks (e.g. any and all My AltaVista pages).

        1.2  "Affiliate" shall mean any person or entity directly or indirectly
controlling, controlled by or under common control with a given person or
entity.

        1.3   "Impression" is generated when a visitor clicks on a button on the
Button Bar (as described in Exhibit A) in the Service Offering Window.
                            ---------

                                       1
<PAGE>

        1.4  "Service Offering Window" shall have the meaning set forth in
Section 3.1 below.

        1.5  "Service Offering" shall mean the customized Internet access
services further described in Exhibit A.
                              ---------
        1.6  "Specifications" means the specifications for the Service Offering
as set forth in Exhibit A.
                ---------

        1.7  "Web Page" means a single file displayed through Web browser
software and made available for viewing, by means of a download to local cache
memory, over the Internet through a common protocol.

        1.8  "Web Site" means any number of associated Web Pages.

    2.  DEVELOPMENT OF THE SERVICE OFFERING

        2.1  1stUp's Obligations. 1stUp will use best commercial efforts to
             -------------------
design, develop and deliver on or before July 11, 1999, a fully functioning
version of the Service Offering with all of the features and components
described in Exhibit A and conforming to the Specifications. Should 1stUp fail
to do so by July 11, 1999, AltaVista reserves the right to terminate this
Agreement immediately.

        2.2  AltaVista's Obligations. AltaVista will use best commercial efforts
             -----------------------
to assist in the design development and prototyping of the Service Offering.

        2.3  The parties agree that any delay by either party in providing the
deliverables for which it is the responsible party will extend the delivery date
for subsequent deliverables by either party on a one-for-one basis for each day
of the delay.

   3.   THE SERVICE OFFERING

        3.1  Service Offering Window. The Service Offering will include the
             -----------------------
Service Offering Window as described in Exhibit A, on which [***] will be
                                        ---------
links to an AltaVista Web Site portal, [***], at AltaVista's
discretion. The Service Offering will begin with [***] total displayed in
the Button Row (as described in Exhibit A). Any [***] in the number of
                                ---------
buttons is subject to [***]. The [***] for AltaVista will not diminish in
prominence from inital implementation without AltaVista's consent. Additional
buttons shall have functionalities designated by 1stUp, provided that no links
shall be provided to Web Sites belonging to the following networks: [***].
AltaVista maintains right to modify list of excluded sites [***]. Also, any
functionalities displayed in the Service Offering Window must comply with
AltaVista's existing contracts or commitments; for example, 1stUp can only
provide links to AltaVista's current bookseller and travel partners. [***]
must be approved by AltaVista. AltaVista shall have the right [***] for
buttons it does not control.

[***] Denotes language for which AltaVista requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

                                       2
<PAGE>

        3.2  Service Offering Hosting and Features.  1stUp will maintain the
             -------------------------------------
Service Offering at all times during the term of this Agreement. The Service
Offering will be designed so that the first Web Page viewed by users of the
Service Offering shall be a page designated by AltaVista. 1stUp will use best
commercial efforts to fix non-conformities and bugs in the software. The Service
Offering will include the most current version of 1stUp's software. 1stUp will
use best efforts to make a technical contact available to AltaVista twenty-four
hours (24) per day, three-hundred sixty-five (365) days per year, to support the
Service Offering. Initially, the technical contact shall be: [***]. 1stUp
and AltaVista shall work jointly to provide hosting of the Service Offering
during the term of this Agreement.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

    4.  SERVICE OFFERING MARKETINGAND USER INFORMATION

        4.1  Registration of Users. 1stUp shall enlist up to [***] users of
             ---------------------
the Service Offering from the period commencing on or before [***] and ending
[***]. If during that period 1stUp enlists [***] users, 1stUp may enlist
additional users of the Service Offering as mutually agreed by the parties. A
user shall be "enlisted" if the user downloads the Service Offering software and
selects the dial-up service.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        4.2  Rights in User Information.  Subject to the license grant below,
             --------------------------
[***] all right, title and interest in and to all user information collected by
1stUp in the course of implementing the Service Offering ("User Information").
[***] will establish [***] policies for the use of that information.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        4.3  Promotion of the Service Offering by AltaVista.  AltaVista shall
             ----------------------------------------------
promote the Service Offering in the broadest manner that AltaVista determines is
consistent with its business and the business of its Affiliates, provided,
however, that AltaVista's only commitment with respect to promotion is that it
will include on its homepage located at www.altavista.com, a link to 1stUp.com's
                                        -----------------
Service Offering.  Such link shall be formatted and placed at AltaVista's sole
discretion.

    5.  JOINT ACTIVITIES

        5.1  Press Release.  AltaVista and 1stUp will work together to develop
             -------------
a product launch press release, citing 1stUp as the technology provider for the
Service Offering. AltaVista and 1stUp will make the release available on their
respective web sites and will distribute the release via their standard press
release avenues, provided, that the timing, placement and format of the release
will be subject to the sole discretion of the disclosing party. AltaVista and
1stUp shall use commercially reasonable efforts to develop press releases of new
developments (such as system and software upgrades, end-user growth milestones,
etc.) and agree not to make any public announcement or disclosure without giving
the other party reasonable opportunity to comment thereon.

    6.  COMPENSATION FOR SERVICE OFFERING WINDOW

                                       3
<PAGE>

        6.1  Service Offering Window Compensation. AltaVista shall pay to 1stUp
             ------------------------------------
an amount equal to [***] for each Impression leading to an AltaVista source
generated by the Service Offering Window during the term of this Agreement,
commencing after the date on which the Service Offering is accepted by AltaVista
in accordance with this Agreement.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        6.2  Reports.  After the end of each calendar quarter during the term
             -------
of this Agreement, 1stUp shall provide to AltaVista a report of the total number
of Impressions for all buttons generated by the Service Offering Window. 1stUp
shall also submit to AltaVista an invoice for the amounts due under Section 6.1
for the reported calendar quarter. During the term of this Agreement AltaVista
shall pay such amounts no later than [***] after receipt of the invoice.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        6.3  No Other Costs.  Subject to AltaVista's payment obligations under
             --------------
this Section 6, the Service Offering shall be developed, customized and
maintained by 1stUp at its sole cost and expense. Although 1stUp and AltaVista
shall work jointly to provide hosting of the Service Offering, hosting also
shall be at 1stUp's sole cost and expense, except for hosting of the software
download, which will be at AltaVista's expense.

    7.  COMPENSATION FOR ALTAVISTA ACTIVITIES

        7.1  Payments.  During the term of this Agreement 1stUp shall pay to
             --------
AltaVista the amount of [***] actually received from third party advertisers and
sponsors on the Service Offering Window (other than AltaVista) less total
accrued (a) access charges from 1stUp's access service provider; (b) e-mail
charges from service providers; and (c) third party call and customer support
charges.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        7.2  Reports.  After the end of each calendar quarter during the term
             -------
of this Agreement, 1stUp shall provide to AltaVista a report of the total
amounts due under Section 7.1. 1stUp shall pay to AltaVista the amounts due
under Section 7.1 for the reported month no later than [***] after the end of
the reported month.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

    8.  INVESTMENT BY ALTAVISTA

        8.1   Stock Purchase Agreement.  Concurrently with the execution of this
              -------------------------
Agreement, the parties are entering into a Stock Purchase Agreement (the "Stock
Purchase Agreement"), pursuant to which, at the closing, which will occur on or
before  [***] after the Effective Date, AltaVista shall make a [***] to 1stUp in
exchange for an aggregate of [***] of [***] of 1stUp (which represents [***] of
the currently outstanding capital stock of 1stUp.com), having substantially the
rights, preferences and privileges set forth in the Stock Purchase Agreement and
subject to all of the terms and conditions set forth therein.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

                                       4
<PAGE>

        8.2  Upon closing of this agreement and Stock Purchase Agreement,
AltaVista has right to [***] to 1stUp [***]. AltaVista maintains right to this
position as long as AltaVista holds a investment stake in 1stUp worth more than
[***].

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        8.3  Additional Investors.  1stUp shall be entitled to issue to
             --------------------
additional individual investors up to the number of shares of its [***] equal
to an aggregate value of [***].

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

        8.4  Option.  1stUp hereby grants AltaVista a [***], exercisable
             ------
at any time prior to [***], to purchase [***], at an exercise price to be
negotiated at the time of exercise (the "Option"), subject to the following
conditions:

             (a)  AltaVista and 1stUp agree to negotiate in good faith regarding
the [***] and the rights, preferences and privileges of the capital stock
underlying the Option;

             (b)  The Option shall terminate upon the earlier to occur of (A)
the closing of a merger of 1stUp with or into another entity in which the
holders of voting securities of the 1stUp immediately prior to such transaction
will hold less than 50% of the voting securities of the surviving entity or the
entity that controls such surviving entity and (B) the closing of the first
registered public offering of Common Stock of 1stUp pursuant to a firm
commitment underwriting; provided, however, that AltaVista receives notice of
such transaction at least 20 days prior thereto; and

             (c)  Upon exercise of the Option, AltaVista shall sign such
additional documentation as 1stUp.com may reasonably request, including
investment representations, a right of first refusal with respect to transfers
of stock by AltaVista and a 180-day market stand-off agreement in connection
with an initial public offering.

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

    9.  WARRANTIES.

        9.1  1stUp.  1stUp represents, warrants and covenants to AltaVista that
             -----
(i)1stUp has the power and authority to enter into this Agreement, to grant the
licenses contained herein, and to otherwise perform its obligations hereunder,
and (ii) the Service Offering does not and will not violate any third party
right, and its use by AltaVista and its Affiliates in accordance with the
license granted hereunder will not violate any third party right.   EXCEPT AS
SET FORTH ABOVE, 1STUP MAKES NO WARRANTIES TO ALTAVISTA, EITHER EXPRESS OR
IMPLIED, AND HEREBY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

        9.2  AltaVista.  AltaVista represents, warrants and covenants to 1stUp
             ---------
that it has the power and authority to enter into this Agreement, to grant the
licenses contained herein, and to otherwise perform its obligations hereunder.
EXCEPT AS SET FORTH ABOVE, ALTAVISTA MAKES NO WARRANTIES TO 1STUP, EITHER
EXPRESS OR IMPLIED,

                                       5
<PAGE>

AND HEREBY DISCLAIMS ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

    10.  INDEMNIFICATION

         10.1  Each party ("Indemnitor") shall indemnify, defend and hold
harmless the other party and its Affiliates and each of their respective
officers, directors, employees and agents (each, an "Indemnified Party") against
any claim, suit, damages, losses, expenses and costs incurred by such
Indemnified Party (i) in connection with a claim by any third party for alleged
infringement of any U.S. patent, trademark, copyright, or other intellectual
property right relating to the promotion, representation or use of the products
provided by the Indemnitor hereunder (which, in the case of 1stUp, means the
Service Offering, and in the case of AltaVista, means any of its deliverables
hereunder), or (ii) as a result of the breach of the representation and warranty
provided in Section 9; but only if the Indemnified Party (a) promptly notifies
Indemnitor in writing of the action (provided that any failure to do so shall
operate as a bar to indemnification hereunder only to the extent the failure is
materially prejudicial to the Indemnitor); (b) permits Indemnitor full authority
to defend or settle the action (except to the extent that the action would
impose any restrictions upon the Indemnified Party, in which case consent is
required); and (c) cooperates with, and provide all available information,
assistance and authority to, Indemnitor to defend or settle the action.

    11.  MANAGEMENT OF RELATIONSHIP.

         11.1  Press Committee Meetings.  AltaVista and 1stUp will establish a
               ------------------------
press committee which, during system downtimes, will meet to jointly develop and
deliver public statements regarding the downtime.

         11.2  Press Committee Members.  The press committee members shall
               -----------------------
serve as the primary source of communication with the other party on press
release matters. The members shall have first tier responsibility for resolving
disputes that may arise hereunder with respect to the scope or direction of the
relationship contemplated by this Agreement. The initial committee members for
1stUp and AltaVista shall be selected by each party separately and specified
prior to launch of the Service Offering. Each party shall promptly advise the
other of any change of member or of his or her address, telephone number, or E-
mail address.

    12.  TERM AND TERMINATION.
         --------------------

         12.1  Term.  This Agreement shall become effective on the Effective
               ----
Date and shall remain in full force and effective for a period of 2 years from
the Effective Date or until terminated pursuant to this Section 12.

         12.2  Events of Default by AltaVista.  1stUp shall have the right to
               ------------------------------
terminate this Agreement and its further obligations hereunder upon the
occurrence of any of the following events of default (subject to AltaVista's
ability to cure or remedy such event as described in Section 12.4):

                                       6
<PAGE>

               (a)  AltaVista is involved in any voluntary or involuntary
bankruptcy proceeding or any other proceeding concerning insolvency,
dissolution, cessation of operations, or reorganization of indebtedness and the
proceeding is not dismissed within 60 days;

               (b)  AltaVista becomes unable to pay its debts as they mature in
the ordinary course of business or makes an assignment for the benefit of its
creditors; or

               (c)  AltaVista is in material default of any provision of this
Agreement.

         12.3  Events of Default by 1stUp.  In addition to AltaVista's
               --------------------------
termination rights under Section 2.1 of this Agreement, AltaVista shall have the
right to terminate this Agreement and its further obligations hereunder upon the
occurrence of any of the following events (subject to 1stUp's ability to cure or
remedy such events as described in Section 12.4):

               (a)  1stUp becomes involved in any voluntary or involuntary
bankruptcy proceeding or any other proceeding concerning insolvency,
dissolution, cessation of operations, or reorganization of indebtedness and the
proceeding is not dismissed within 60 days;

               (b)  1stUp becomes insolvent or unable to pay its debts as they
mature in the ordinary course of business or makes an assignment for the benefit
of its creditors; or

               (c)  1stUp is in material default of any provision of this
Agreement.

        12.4  Right to Cure Event of Default.  Upon the occurrence of any
              ------------------------------
event of default entitling a party to terminate this Agreement, the non-
defaulting party may send notice of termination, specifying the nature of the
default, to the other party. The non-defaulting party shall permit 30 calendar
days, following the date of such notice to enable the other party to cure the
default to the non-defaulting party's satisfaction (assuming that the default is
susceptible of cure). Failure to cure the default shall result in termination
without further notice by the non-defaulting party, unless such non-defaulting
party extends the cure period by written notice or withdraws the default notice.

        12.5  Duties Upon Termination.  Upon expiration or termination of this
              -----------------------
Agreement, each party shall return or destroy the Confidential Information (as
defined herein) of the other party.  All amounts owing shall be accelerated and
shall become immediately payable.  Either party may request in writing that the
other party certify that it has complied with its obligations hereunder.  Upon
expiration of this Agreement, in the event that AltaVista desires to continue to
offer the Service Offering or a similar offering, AltaVista will offer 1stUp the
opportunity to continue providing the Service Offering on terms acceptable to
AltaVista, before offering a similar opportunity to any third party.  If
agreement is not reached, AltaVista and 1stUp will work together to migrate
customers to the new solution.

        12.6  Survival.  The rights and obligations of the parties pursuant to
              --------
Sections 1, 4, 7, 8, 9, 10, 12.6, 13, 14, 15, 17 18, and 18 shall survive
termination or expiration of this Agreement for any reason.

                                       7
<PAGE>

    13.  LICENSES AND OWNERSHIP.
         ----------------------

         13.1  Service Offering Software License.  1stUp hereby grants to
               ---------------------------------
AltaVista and its Affiliates, during the term of this Agreement, a non-
exclusive, worldwide, non-transferable, royalty-free and irrevocable license,
under all of 1stUp's intellectual and other proprietary rights, to store, copy,
publicly display, publicly perform, distribute and transmit the Service
Offering, in object code format, throughout the Web Pages generated or served
from the AV Platforms and to make the Information available to users of the AV
Platforms to be viewed, downloaded or copied, for their personal, non-commercial
use in any form deemed appropriate by AltaVista.

         13.2  Trademark License.  Each of AltaVista and 1stUp grants to the
               -----------------
other party and their respective Affiliates, during the term of this Agreement,
a non-exclusive, non-transferable, royalty free right to display during the term
of this Agreement the trademarks and logos made available by such party for the
purposes expressly outlined in this Agreement, subject to the terms of this
Agreement and such party's standard trademark usage. In the event either party
determines that the other's use of the applicable trademarks or service marks is
inconsistent with the applicable trademark or service mark holder's quality
standards, then upon written request and within a reasonable time, the
applicable party shall conform such trademark or service mark usage to the
appropriate party standards. If either party fails to conform the applicable
trademark use or service mark usage, then the owner of the marks shall have the
right to suspend use under the terms of this Agreement.

         13.3  Retained Rights.  Except as otherwise provided in this Agreement,
               ---------------
1stUp shall own and retain all right, title, and interest in and to any
technology or information otherwise developed or created solely by 1stUp,
including any intellectual property rights therein.

         13.4  AltaVista Intellectual Property Rights.  Except as otherwise
               --------------------------------------
provided herein, AltaVista shall own and retain all right, title, and interest
in and to any technology or information otherwise developed or created solely by
AltaVista, including any intellectual property rights therein.

         13.5  Joint Intellectual Property Rights.  The parties shall agree on
               ----------------------------------
the ownership of any jointly developed intellectual property rights prior to
commencing with the development of work that is likely to lead to the creation
of such rights.

    14.  LIMITATION OF LIABILITY.
         -----------------------

     EXCEPT FOR ANY LIABILITY ARISING OUT OF A BREACH OF THE CONFIDENTIALITY
PROVISIONS OF THIS AGREEMENT SET FORTH IN SECTION 15 HEREOF AND SECTION 9
HEREOF, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY LOST PROFITS, LOSS OF
MARKET OR OPPORTUNITY AND/OR INCIDENTAL OR CONSEQUENTIAL LOSS OR DAMAGE
HOWSOEVER ARISING (WHETHER OR NOT ARISING OUT OF THE NEGLIGENCE OF 1STUP OR
ALTAVISTA, OR THEIR RESPECTIVE EMPLOYEES OR AGENTS) IN CONNECTION WITH THE
SUBJECT MATTER OF THIS AGREEMENT, PURSUANT TO ANY CLAIM IN CONTRACT, NEGLIGENCE,
TORT, STRICT LIABILITY, OR OTHER THEORY.

                                       8
<PAGE>

    15.  CONFIDENTIALITY.
         ---------------

         15.1  Confidentiality Obligations.
               ---------------------------

               (a)  "Confidential Information" is any information disclosed by
one party to the other in connection with this Agreement and which the receiving
party knows or has reason to know is regarded as confidential information by the
disclosing party. The Confidential Information will include, but will not be
limited to, trade secrets, the structure, sequence and organization of the
source code of computer software, marketing plans, techniques, processes,
procedures and formulae. For each item of Confidential Information, the party
disclosing the item shall be called the "Disclosing Party," and the party
receiving the item shall be called the "Receiving Party."

               (b)  The Receiving Party shall hold all Confidential Information
of the Disclosing Party in trust and confidence, and protect it as the Receiving
Party would protect its own confidential information (which, in any event, shall
not be less than reasonable protection) and shall not use such Confidential
Information for any purpose other than that contemplated by this Agreement.
Unless agreed by the Disclosing Party in writing, the Receiving Party shall not
disclose any Confidential Information of the Disclosing Party, by publication or
otherwise, to any person other than employees and contractors (such as contract
manufacturers or software developers) who (i) are bound to written
confidentiality obligations consistent with and at least as restrictive as those
set forth herein and (ii) have a need to know such Confidential Information for
purposes of enabling a party to exercise its rights and perform its obligations
pursuant to this Agreement. The foregoing confidentiality obligation shall be
effective for a period of [***] after first disclosure of the Confidential
Information pursuant to the terms of this Agreement, provided however, that each
party will comply with any obligations of confidentiality as may be imposed
pursuant to agreements with third parties for longer periods if the Disclosing
Party discloses to the other in writing such obligations of confidentiality that
may be imposed pursuant to such agreements with third parties at the time of
disclosure.

         15.2  Exceptions.  The obligations specified in Section 15.1 shall not
               ----------
apply to any Confidential Information to the extent that:

               (a)  it is already known to the Receiving Party without
restriction prior to the time of disclosure by the Disclosing Party;

               (b)  it is acquired by the Receiving Party from a third party
without confidentiality restriction;

               (c)  it is independently developed or acquired by the Receiving
Party by employees or contractors without access to such Confidential
Information;

               (d)  it is approved for release by written authorization of the
Disclosing Party;

               (e)  it is in the public domain at the time it is disclosed or
subsequently falls within the public domain through no wrongful action of the
Receiving Party;

                                       9
<PAGE>

               (f)  it is disclosed pursuant to the requirement of a
governmental agency or disclosure is permitted or required by operation of law,
provided that the Receiving Party use its best efforts to notify the Disclosing
Party in advance of such disclosure and seeks confidential treatment for such
Confidential Information.

         15.3  Confidentiality of Agreement.  Each party agrees that the terms
               ----------------------------
and conditions of this Agreement shall be treated as Confidential Information;
provided that each party may disclose the terms and conditions of this
Agreement:  (a) to legal counsel; (b) in confidence, to accountants, banks, and
financing sources and their advisors; (c) in connection with promotional and
marketing activities permitted by this Agreement; and (d) in confidence, in
connection with the enforcement of this Agreement or rights under this
Agreement.

    16.  Related Agreements. Both parties are entering into the Rewards Software
agreement. In addition, the parties agree to enter into a Source Code Escrow
Agreement with a mutually agreed escrow agent (the "Source Code Escrow
Agreement") on or before the closing under the Stock Purchase Agreement, relying
upon Section 365(n) of the Bankruptcy Code to support the escrow. 1stUp agrees
that its consent on the terms and provisions of the Source Code Escrow Agreement
will not be unreasonably withheld.

    17.  JURISDICTION AND APPLICABLE LAW.
         -------------------------------

         17.1  Arbitration.  Any claim, dispute, or controversy arising out of
               -----------
or in connection with or relating to this Agreement or the breach or alleged
breach thereof will be addressed first by mediation and, if not resolved, will
be submitted by the parties to arbitration by the American Arbitration
Association in the County of Santa Clara, State of California, United States of
America under the commercial rules then in effect for that Association, except
as provided herein. Each party will choose one arbitrator within 30 days of
receipt of the notice of intent to arbitrate. Within 60 days of receipt of the
notice of intent to arbitrate, the two arbitrators will choose a neutral third
arbitrator who will act as chairman. All chosen arbitrators must have experience
related to the subject of the dispute. If no arbitrator is appointed within the
times herein provided, or any extension of time that is mutually agreed upon,
the Association will make such appointment within 30 days of such failure. The
parties will be entitled to discovery as provided in Sections 1283.05 and 1283.1
of the Code of Civil Procedure of the State of California or any successor
provision, whether or not the California Arbitration Act is deemed to apply to
the arbitration. The award rendered by the arbitrators will include costs of
arbitration, reasonable attorneys' fees, and reasonable costs for expert and
other witnesses, and judgment on such award may be entered in any court having
jurisdiction thereof. Nothing in this Agreement will be deemed as preventing
either party from seeking injunctive relief (or any other provisional remedy)
from any court having jurisdiction over the parties and the subject matter of
the dispute as necessary to protect either party's name, proprietary
information, trade secrets, know how, or any other proprietary rights.

         17.2  Choice of Forum.  The parties hereby submit to the jurisdiction
               ---------------
of, and waive any venue objections against, the United States District Court for
the Northern District of

                                       10
<PAGE>

California, San Jose Branch and the Superior and
Municipal Courts of the State of California, Santa Clara County, in any
litigation arising out of the Agreement.

         17.3  Governing Law.  This Agreement shall be governed by and
               -------------
construed under the laws of the United States and the State of California,
without regard to choice of law provisions.

    18.  MISCELLANEOUS.
         -------------

         18.1  Event of Force Majeure.  If the performance of this Agreement
               ----------------------
or any obligations hereunder is prevented, restricted, or interfered with by
reason of acts of God, acts of an governmental authority, riot, revolution,
fires, or war, or other cause beyond the reasonable control of the parties
hereto ("Force Majeure"), the party so effected shall be excused from such
performance until such Force Majeure is removed, provided that the party so
effected shall use its best efforts to avoid or remove such causes of non-
performance and shall continue performance hereunder with the utmost dispatch
whenever such causes are removed. In no event shall this provision apply to
excuse a party from any payment obligations under this Agreement.

         18.2  Compliance with Export Control.  The parties agree not to export
               ------------------------------
or re-export, directly or indirectly, (i) any technical data received from the
other party pursuant to this Agreement, or (ii) any product, process, or
technical data using such received technical data, to any country to which such
export or re-export is restricted or prohibited by United States or other
relevant laws, without obtaining prior written authorization from the relevant
government authorities as required by such laws.

         18.3  Waiver.  Any waiver of breach or default pursuant to this
               ------
Agreement shall not be a waiver of any other subsequent default. Failure or
delay by either party to enforce any term or condition of this Agreement shall
not constitute a waiver of such term or condition.

         18.4  Severability.  To the extent that any provision of this
               ------------
Agreement is found by a court of competent jurisdiction to be invalid or
unenforceable, that provision notwithstanding, the remaining provisions of this
Agreement shall remain in full force and effect and such invalid or
unenforceable provision shall be deleted .

         18.5  Assignment.  Neither party may assign, voluntarily, by operation
               ----------
of law, or otherwise, any rights or delegate any duties under this Agreement
(other than third-party technical infrastructure and the right to receive
payments) without the other party's prior written consent, and any attempt to do
so without that consent will be void; provided, however, that AltaVista may
assign any of its rights or obligations under this Agreement in connection with
a sale of substantially all of its assets, merger, public offering or other
reorganization transaction. 1stUp may also assign any of its rights or
obligations under this Agreement, except to the following companies listed
below, in connection with a sale of substantially all of its assets, merger,
public offering or other reorganization transaction. 1stUp cannot assign any of
its rights or obligations to the following companies: [***]. AltaVista
maintains right to modify list

[***] Denotes language for which AltaVista requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

                                       11
<PAGE>

of excluded sites at its sole discretion. This Agreement will bind and inure
to the benefit of the parties and their respective successors and permitted
assigns.

         18.6  Authority.  Each party warrants to the other party that it has
               ---------
the authority to enter into this Agreement and that all necessary corporate or
other approvals have been obtained.

         18.7  Notices.  Any notice required or permitted pursuant to this
               -------
Agreement shall be in writing delivered by hand, overnight courier, telecopy,
facsimile, or certified or registered mail to the address listed below and shall
be effective upon receipt:

Notices to 1stUp:

1stUp.Com
[***]
[***]
[***]

Notices to AltaVista:

AltaVista
[***]
[***]
[***]
With a copy "Attn: Legal Department"

[***] Denotes language for which AltaVista has requested confidential treatment
pursuant to the rules and regulations of the Securities Act of 1933, as amended.

         18.8  Amendment.  No alteration, waiver, cancellation, or any other
               ---------
change or modification in any term or condition of this Agreement shall be valid
or binding on either party unless made in writing and signed by duly authorized
representatives of both parties.

         18.9  Counterparts.  This Agreement may be executed in one or more
               ------------
counterparts, including facsimiles, each of which shall be deemed to be a
duplicate original, but all of which, taken together, shall be deemed to
constitute a single instrument

         18.10   Entire Agreement.  The terms and conditions herein contained,
                 ----------------
including all Exhibits hereto, constitute the entire agreement between the
parties with respect to the subject matter of this Agreement and supersede any
previous and contemporaneous agreements and understandings, whether oral or
written, between the parties hereto with respect to the subject matter hereof,
including without limitation the Initial Term Sheet, but not including the Stock
Purchase Agreement and the Rewards Software agreement. There are no other
agreements, understandings, representations, or promises between the parties
with respect to the subject matter of this Agreement.

         18.11  Construction.  This Agreement is the product of negotiation
                ------------
between the parties and their respective counsel. This Agreement will be
interpreted fairly in accordance with its terms and conditions and without any
strict construction in favor of either party. Any ambiguity shall not be
interpreted against the drafting party.

                                       12
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their respective duly authorized representatives as of the Effective
Date.

1stUp.com Corporation                           AltaVista Company

By: /s/ Charles Katz                            By: /s/ [Signature Illegible]
   -------------------------------                 ----------------------------
Name: Charles Katz                              Name:
     -----------------------------                   --------------------------
Title: President, CEO                           Title:
      ----------------------------                    -------------------------
Date:  June 25, 1999                            Date: June 25, 1999
     -----------------------------                   --------------------------

                                       13

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