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                                                                   Exhibit 10.19

                    SERIES E REGISTRATION RIGHTS AGREEMENT
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     THIS SERIES E REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made as
of February 3, 2000, by and among divine interVentures, inc., a Delaware
corporation (the "Corporation") and CMGI, Inc., a Delaware corporation (the
"Purchaser").

     Pursuant to that Purchase Agreement, dated as of February 3, 2000, by and
between the Purchaser and the Corporation (as amended and modified from time to
time, the "Purchase Agreement"), the other documents and instruments referred to
therein and consummation of the transactions contemplated thereby, Purchaser is
acquiring shares of the Corporation's Series E Senior Participating Convertible
Redeemable Preferred Stock, $0.001 par value per share (the "Series E Preferred
Shares") and shares of the Corporation=s Class A Common Stock.  In connection
with the performance of the Purchase Agreement and the other agreements
contemplated thereby and the issuance of the Series E Preferred Shares in the
manner contemplated thereby, the parties have agreed to provide execute and
deliver this Agreement.  Except as otherwise indicated herein, capitalized terms
used herein shall have the meanings set forth in Section 1 hereof.

                                  AGREEMENTS
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     In consideration of the premises and the mutual covenants herein contained
and other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, the parties hereto hereby agree as follows:

     1.  Definitions.  As used in this Agreement.

     "Class A Common Stock" means the Class A Common Stock, $0.001 par value per
share of the Corporation.

     "Class B Common Stock" means the Class B Common Stock, $0.001 par value per
share, of the Corporation.

     "Commission" means the United States Securities and Exchange Commission or
any successor thereto.

     "Common Stock" means, collectively, the Class A Common Stock and the Class
B Common Stock.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended, or
any similar federal statute, as the same shall be in effect from time to time.
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     "Founders Shares" means at any time (i) any shares of Class A Common Stock
then outstanding which were sold by the Corporation prior to the date hereof at
a purchase price of $0.001 per share, (ii) any shares of Class A Common Stock
then outstanding which were issued upon conversion of shares of Class B Common
Stock which were sold prior to the date hereof at a purchase price of $0.001 per
share, (iii) any shares of Class A Common Stock then issuable upon conversion of
outstanding shares of Class B Common Stock which were sold prior to the date
hereof at a purchase price of $0.001 per share, (iv) any shares of Class A
Common Stock then outstanding which were issued as, or were issued directly or
indirectly upon the conversion or exercise of other securities issued as, a
dividend or other distribution with respect to or in replacement of any shares
referred to in (i), (ii) or (iii); and (v) any shares of Class A Common Stock
then issuable directly or indirectly upon the conversion or exercise of other
securities which were issued as a dividend or other distribution with respect to
or in replacement of any shares referred to in (i), (ii) or (iii); provided that
Founders Shares shall not include any shares which have been disposed of
pursuant to an effective registration statement under the Securities Act or sold
pursuant to Rule 144.

     "IPO" means the Corporation's first underwritten public offering of shares
of Common Stock pursuant to an effective registration statement under the
Securities Act.

     "Junior Preferred Stock" means, collectively, the Series A Junior
Convertible Preferred Stock, $0.001 par value per share, the Series B
Convertible Preferred Stock, $0.001 par value per share, and the Series C
Convertible Preferred Stock, $0.001 par value per share, of the Corporation.

     "Junior Preferred Shares" means at any time (i) any shares of Class A
Common Stock then outstanding which were issued upon conversion of shares of
Junior Preferred Stock or upon conversion of shares of Class B Common Stock
issued upon conversion of Junior Preferred Stock; (ii) any shares of Class A
Common Stock then issuable upon conversion of shares of then outstanding Junior
Preferred Stock or upon conversion of shares of Class B Common Stock issued or
issuable upon conversion of Junior Preferred Stock; (iii) any shares of Class A
Common Stock then outstanding which were issued as, or were issued directly or
indirectly upon the conversion or exercise of other securities issued as, a
dividend or other distribution with respect to or in replacement of any shares
referred to in (i) or (ii); and (iv) any shares of Class A Common Stock then
issuable directly or indirectly upon the conversion or exercise of other
securities which were issued as a dividend or other distribution with respect to
or in replacement of any shares referred to in (i) or (ii); provided, however,
that Junior Preferred Shares shall not include any shares which have been (a)
disposed of pursuant to an effective registration statement under the Securities
Act, (b) sold or otherwise transferred in a transaction in which the
registration rights applicable to such shares have not been assigned, or (c)
sold pursuant to Rule 144.

     "Other Registrable Shares" means shares of the Company's outstanding or
issuable Class A Common Stock with respect to which the holder thereof has a
contractual registration right that

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is pari passu in order of priority to the Purchaser Registrable Shares, whether
such agreement is effective prior to or after the date of this Agreement,
including Series D Preferred Shares but excluding Founders Shares.

     "Person" means an individual, corporation, partnership, limited liability
company, limited partnership, syndicate, person (including, without limitation,
a "Person" as defined in Section 13(d)(3) of the Exchange Act), trust,
association or entity or government, political subdivision, agency or
instrumentality of a government.

     "Public Offering" means any offering by the Corporation of its equity
securities to the public pursuant to an effective registration statement under
the Securities Act.

     "Purchaser Registrable Shares" means at any time (i) any shares of Common
Stock then outstanding which were (x) issued upon conversion of Series E
Preferred Shares originally issued to the Purchaser under the Purchase Agreement
or (y) originally issued to the Purchaser under the Purchase Agreement; (ii) any
shares of Common Stock then issuable upon conversion of then outstanding Series
E Preferred Shares originally issued to the Purchaser; (iii) any shares of
Common Stock then outstanding which were issued as, or were issued directly or
indirectly upon the conversion or exercise of other securities issued as, a
dividend or other distribution with respect or in replacement of any shares
referred to in (i) or (ii); and (iv) any shares of Common Stock then issuable
directly or indirectly upon the conversion or exercise of other securities which
were issued as a dividend or other distribution with respect to or in
replacement of any shares referred to in (i), (ii) or (iii); provided, however,
that Purchaser Registrable Shares shall cease to be Purchaser Registrable Shares
when such Purchaser Registrable Shares have been (a) disposed of pursuant to an
effective registration statement under the Securities Act, (b) sold or otherwise
transferred in a transaction in which the rights under the provisions of this
Agreement have not been properly assigned, or (c) sold pursuant to Rule 144. For
purposes of this Agreement, a Person will be deemed to be a holder of Purchaser
Registrable Shares whenever such Person has the then-existing right to acquire
such Purchaser Registrable Shares (by conversion or otherwise), whether or not
such acquisition actually has been effected. Subject to the foregoing, Purchaser
Registrable Shares shall continue to constitute Purchaser Registrable Shares in
the hands of any permitted transferee of Purchaser.

     "Rule 144" means Rule 144 (including Rule 144(k)) of the Commission under
the Securities Act or any similar provision then in force under the Securities
Act.

     "Securities Act" means the Securities Act of 1933, as amended, or any
similar federal statute, as the same shall be in effect from time to time.

     "Series D Preferred Shares" shall have the meaning given such term in the
Series D Registration Rights Agreement.

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     "Series D Registration Rights Agreement" means the Series D Registration
Rights Agreement dated as of December 7, 1999 by and among the Corporation and
the original holders of its Series D  Senior Participating Convertible
Redeemable Preferred Stock, as such agreement may be amended from time to time
in accordance with its terms.

     "Underlying Class A Common Stock" means shares of Common Stock issuable or
issued upon conversion of the Series E Preferred Shares originally issued to
Purchaser.

     2.  Piggyback Registration.

          2.1  Right to Piggyback.  After the consummation of an IPO but subject
to Section 9 below, whenever the Corporation proposes to register Common Stock
under the Securities Act (other than pursuant to a registration statement filed
on Form S-8 or Form S-4, or any successor forms, or otherwise filed in
connection with a merger, acquisition, exchange offer or other business
combination transaction or an offering of securities solely to the Corporation's
existing security holders or employees) whether for sale on its own account or
pursuant to a demand for registration by other holders of shares of Common Stock
(a "Piggyback Registration"), the Corporation will give prompt written notice to
all holders of the Purchaser Registrable Shares of its intention to effect such
a Piggyback Registration and will include in such registration all Purchaser
Registrable Shares (subject to, and in accordance with, the priorities set forth
in Sections 2.2 and Section 2.3 below) with respect to which the Corporation has
received written requests for inclusion in such registration within twenty (20)
days after the Corporation's notice. Notwithstanding the foregoing, if a
Piggyback Registration is not an underwritten registration, the Corporation
shall not be required to include any Purchaser Registrable Shares held by any
Person in such Piggyback Registration if such Person at the time of such notice
would be permitted to sell all of the Purchaser Registrable Shares held by such
Person, without registration, pursuant to Rule 144.

          2.2  Priority on Non-Demand Registrations.  If a Piggyback
Registration is an underwritten registration on behalf of the Corporation that
does not constitute a "demand" registration required pursuant to an agreement
with the Corporation, and the managing underwriters advise the Corporation in
writing that in their opinion the number of shares of Common Stock requested to
be included in such registration exceeds the number which can be marketed (a) at
a price per share reasonably related to the then-current market value per share
of the Common Stock, and (b) without materially and adversely affecting the
entire offering, the Corporation will include in such registration up to the
amount determined advisable by the underwriters:

     (i) first, the shares of Common Stock that the Corporation proposes to
sell;

     (ii) second, the Purchaser Registrable Shares and the Other Registrable
Shares requested to be included in such registration, pro rata among the holders
of such Purchaser

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Registrable Shares and Other Registrable Shares based on the number of shares of
Common Stock requested to be included in such registration by the holders
thereof; and

     (iii) third, the Junior Preferred Shares and any other shares of Common
Stock held by stockholders of the Corporation which are not Other Registrable
Shares (including the Founders Shares), requested to be included in such
registration, pro rata among the holders of such Junior Preferred Shares and
other shares on the basis of the number of shares which are owned by such
holders and requested to be included in such registration, or otherwise pursuant
to any contractual registration rights applicable to such shares.

          2.3  Priority on Demand Registrations.  If a Piggyback Registration
is an underwritten registration pursuant to a demand for registration (other
than a Demand Registration under Section 3 hereof, the priority of which will be
governed by Section 3.4 below) by holders of Other Registrable Shares and the
managing underwriters advise the Corporation in writing that in their opinion
the number of shares of Common Stock requested to be included in such
registration exceeds the number which can be marketed (a) at a price per share
reasonably related to the then-current market value per share of the Common
Stock, and (b) without materially and adversely affecting the entire offering,
the Corporation will include in such registration up to the amount determined
advisable by the underwriters:

     (i) first, (A) the shares of Common Stock requested to be included therein
by the holders of Other Registrable Shares on behalf of whom such registration
has been initially requested; and (B) the Purchaser Registrable Shares requested
to be included in such registration by the holders of Purchaser Registrable
Shares hereunder pro rata, among the parties in clauses (A) and (B) based on the
number of shares of Common Stock requested to be included in such registration
by the holders thereof;

     (ii) second, any securities that the Corporation proposes to sell; and

     (iii) third, the Junior Preferred Shares and any other shares of Common
Stock held by stockholders of the Corporation which are not entitled to be pari
passu with the Purchaser Registrable Shares with respect to such registration
(including the Founders Shares), requested to be included in such registration,
pro rata among the holders of such Junior Preferred Shares and other shares on
the basis of the number of shares which are owned by such holders and requested
to be included in such registration, or otherwise pursuant to any contractual
registration rights applicable to such shares.

     Without limiting this Section 2.3 or Section 2.2, (i) no Founders Shares
shall be included in an underwritten registration by the Corporation unless all
of the Purchaser Registrable Shares requested to be included in such
registration pursuant to this Agreement are permitted to be included in such
registration, and (ii) no shares of Common Stock (including Founders Shares)
held by executive officers of the Corporation shall be included in an
underwritten registration if

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the managing underwriters advise the Corporation that the inclusion of shares of
Common Stock held by executive officers of the Corporation will adversely affect
the offering.

          2.4  Right to Terminate Registration.  The Corporation shall have
the right to withdraw any registration initiated by it under this Section 2
prior to the effectiveness of such registration whether or not any holder of its
securities has elected to include securities in such registration.

     3.  Demand Registrations.

          3.1  Requests for Registration.  The holders of the outstanding
Purchaser Registrable Shares may request registration under the Securities Act
(a "Demand Registration) of all or any portion of its Purchaser Registrable
Shares on Form S-2 or S-3 or any similar short form registration ("Short-Form
Registrations"), if available, at any time following the twelve-month
anniversary of the consummation by the Corporation of an IPO. Each request for a
Demand Registration shall specify the approximate number of Purchaser
Registrable Shares requested to be registered and the anticipated per share
price range for such offering. Within ten (10) days after receipt of any such
request, the Corporation will give written notice of such requested registration
to all other holders of Purchaser Registrable Shares and, subject to Section 3.4
below, will include in such registration all Purchaser Registrable Shares with
respect to which the Corporation has received written requests for inclusion
therein within fifteen (15) days after the receipt of the Corporation's notice.

          3.2  Intentionally Omitted.

          3.3  Short-Form Registrations. The holders of at least fifteen percent
(15%) of the Purchaser Registrable Shares will be entitled to request unlimited
Short-Form Registrations in which the Corporation will pay all Registration
Expenses. After the Corporation has become subject to the reporting requirements
of the Exchange Act, the Corporation will use its best efforts to make Short
Form Registrations available for the sale of Purchaser Registrable Shares.

          3.4  Priority on Demand Registrations.  The Corporation will not
include in any Demand Registration any securities which are not Purchaser
Registrable Shares (except for Other Registrable Shares) without the prior
written consent of the holders of a majority of the Purchaser Registrable
Shares. If a Demand Registration is an underwritten offering and the managing
underwriters advise the Corporation in writing that in their opinion the number
of Purchaser Registrable Shares and, if permitted hereunder, other securities
requested to be included in such offering exceeds the number of Purchaser
Registrable Shares and other securities, if any, which can be sold in an orderly
manner in such offering within a price range acceptable to the holders of a
majority of the Purchaser Registrable Shares initially requesting registration,
the Corporation will include in such registration (i) first, the Purchaser
Registrable Shares and Other Registrable Shares requested to be included in such
registration by the holders thereof, pro rata among such holders on the basis of
the number of shares of Purchaser Registrable Shares and Other Registrable

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Shares requested to be included in such registration by the holders thereof, and
(ii) second, the other securities requested to be included in such registration
which in the opinion of such underwriters can be sold in an orderly manner
within the price range of such offering.

          3.5  Restrictions on Demand Registrations.  The Corporation will
not be obligated to effect any Demand Registration within six months after the
effective date of a previous Demand Registration. The Corporation may postpone
for up to ninety (90) days (but not more than once in a six (6) month period)
the filing or the effectiveness of a registration statement for a Demand
Registration if the Corporation's board of directors determines that such Demand
Registration is reasonably likely to have an adverse effect on any proposal or
plan by the Corporation or any of its subsidiaries to engage in any acquisition
of assets (other than in the ordinary course of business) or any merger,
consolidation, tender offer or any other material financing or transaction;
provided that, in such event, the holders of Purchaser Registrable Shares
initially requesting such Demand Registration will be entitled to withdraw such
request.

          3.6  Intentionally Omitted.

          3.7  Other Registration Rights.  The Corporation will not grant to
any Persons the right to request the Corporation to register any equity
securities of the Corporation, or any securities convertible or exchangeable
into or exercisable for such securities, other than rights which are pari passu
or junior in all respects to the rights granted to the holders of Purchaser
Registrable Shares hereunder (including, without limitation, priority in any
registration by the Corporation), without the prior written consent of the
holders of at least a majority of the outstanding Purchaser Registrable Shares.

     4.  Registration Procedures.  Whenever the holders of Purchaser Registrable
Shares have requested that any Purchaser Registrable Shares be registered
pursuant to this Agreement, the Corporation will use its reasonable best efforts
to effect the registration and sale of such Purchaser Registrable Shares in
accordance with the intended method of disposition thereof, and, pursuant
thereto, the Corporation will as expeditiously as reasonably possible:

          (a)  prepare and file with the Commission a registration statement
with respect to such Purchaser Registrable Shares and thereafter use its
reasonable best efforts to cause such registration statement to become and
remain effective for the period of the distribution contemplated thereby,
determined as hereinafter provided (provided that before filing a registration
statement or prospectus or any amendments or supplements thereto with respect to
a Demand Registration, the Corporation will furnish to the counsel selected by
the holders of a majority of the Purchaser Registrable Shares initiating such
registration statement copies of all such documents proposed to be filed, which
documents will be subject to review of such counsel);

          (b)  notify each holder of Purchaser Registrable Shares of the
effectiveness of each Registration Statement filed hereunder and prepare and
file with the Com mission such amendments and supplements to such registration
statement and the prospectus used

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in connection therewith as may be necessary to comply with the Securities Act;
and, with respect to Demand Registrations, as may be necessary to keep such
registration statement effective for a period of either (i) not less than six
months (subject to extension pursuant to Section 8) or, if such registration
statement relates to an underwritten offering, such period as in the opinion of
counsel for the underwriters a prospectus is required by law to be delivered in
connection with sales of Purchaser Registrable Shares by an underwriter or
dealer or (ii) such shorter period as will terminate when all of the securities
covered by such registration statement have been disposed of in accordance with
the intended methods of disposition by the seller or sellers thereof set forth
in such registration statement (but in any event not before the expiration of
any longer period required under the Securities Act), and to comply with the
provisions of the Securities Act with respect to the disposition of all
securities covered by such registration statement until such time as all of such
securities have been disposed of in accordance with the intended methods of
disposition by the seller or sellers thereof set forth in such registration
statement;

          (c) furnish to each seller of Purchaser Registrable Shares such number
of copies of such registration statement, each amendment and supplement thereto,
the prospectus(es) included in such registration statement (including each
preliminary prospectus) and such other documents as such seller may reasonably
request in order to facilitate the disposition of the Purchaser Registrable
Shares owned by such seller;

          (d) notify each seller of such Purchaser Registrable Shares, at any
time when a prospectus relating thereto is required to be delivered under the
Securities Act, of the happening of any event as a result of which the
prospectus included in such registration statement, as then in effect, contains
an untrue statement of a material fact or omits any fact necessary to make the
statements therein not misleading in light of the circumstances under which they
were made, and, at the request of any such seller, the Corporation will prepare
a supplement or amendment to such prospectus so that, as thereafter delivered to
the purchasers of such Purchaser Registrable Shares, such prospectus will not
contain any untrue statement of a material fact or omit to state any fact
necessary to make the statements therein not misleading in light of the
circumstances under which they were made (and such sellers shall suspend the use
of the prospectus until the requisite changes thereto have been made);

          (e) use its reasonable best efforts to cause all such Purchaser
Registrable Shares to be listed on each securities exchange or market on which
the Common Stock is then listed;

          (f) use its reasonable best efforts to cause such Purchaser
Registrable Shares to be registered or qualified with or approved by such other
governmental agencies or authorities in such jurisdictions as may be necessary
to consummate the disposition of such Purchaser Registrable Shares;

          (g) provide a transfer agent and registrar for all such Purchaser
Registrable Shares not later than the effective date of such registration
statement;

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          (h) enter into such customary agreements (including underwriting
agreements in customary form) and take such other actions as are reasonably
required in order to expedite or facilitate the disposition of such Purchaser
Registrable Shares;

          (i) make available for inspection by any seller of Purchaser
Registrable Shares, any underwriter participating in any disposition pursuant to
such registration statement, and any attorney, accountant or other agent
retained by any such seller or underwriter, all financial and other records,
pertinent corporate documents and properties of the Corporation, and cause the
Corporation's officers, directors, employees and independent accountants to
supply all information reasonably requested by any such seller or underwriter,
attorney, accountant or agent in connection with such registration statement;

          (j) otherwise use its reasonable best efforts to comply with all
applicable rules and regulations of the Commission, and make available to its
security holders, as soon as reasonably practicable, an earnings statement
covering the period of at least twelve months beginning with the first day of
the Corporation's first full calendar quarter after the effective date of the
registration statement, which earnings statement shall satisfy the provisions of
Section 11(a) of the Securities Act and Rule 158 thereunder;

          (k) advise each seller of such Purchaser Registrable Shares, promptly
after it shall receive notice or obtain knowledge thereof, of the issuance of
any stop order by the Commission suspending the effectiveness of such
registration statement or the initiation or threatening of any proceeding for
such purpose and promptly use its reasonable best efforts to prevent the
issuance of any stop order or to obtain its withdrawal if any such stop order
shall be issued (and, if such stop order shall be issued, such sellers shall
suspend the use of the prospectus until it shall be withdrawn); and

          (l) at the request of the managing underwriters in connection with an
underwritten offering, furnish on the date or dates provided for in the
underwriting agreement (i) an opinion of counsel, addressed to the underwriters
and, if permitted by applicable professional standards, to the sellers of
Purchaser Registrable Shares, covering such matters as such underwriters and
sellers may reasonably request, including such matters as are customarily
furnished in connection with an underwritten offering; and (ii) a letter or
letters from the independent certified public accountants of the Corporation
addressed to the underwriters and, if permitted by applicable professional
standards, to the sellers of Purchaser Registrable Shares, covering such matters
as such underwriters or sellers may reasonably request, in which letter(s) such
accountants shall state, without limiting the generality of the foregoing, that
they are independent certified public accountants within the meaning of the
Securities Act and that in their opinion the financial statements and other
financial data of the Corporation included in the registration statement, the
prospectus(es), or any amendment or supplement thereto, comply in all material
respects with the applicable accounting requirements of the Securities Act.

     Notwithstanding any provision of this Section 4 to the contrary, the
Corporation shall not be required to amend or supplement a prospectus if such
amendment of supplement would require

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the Corporation to disclose a material financing, acquisition or other
transaction then being pursued by the Corporation and the Executive Committee of
the Board of Directors of the Corporation shall determine in good faith that
such disclosure is not in the best interests of the Corporation or would
interfere with such transaction; provided that the Corporation shall give
immediate notice thereof to holders of Purchaser Registrable Shares.

     For purposes of Section 4(a) and Section 4(b), the period of distribution
of Purchaser Registrable Shares in a firm commitment underwritten public
offering shall be deemed to extend until each underwriter has completed the
distribution of all securities purchased by it, and the period of distribution
of Purchaser Registrable Shares in any other registration shall be deemed to
extend until the earlier of (i) the sale of all Purchaser Registrable Shares
covered thereby and (ii) the end of the period of distribution for the holders
of its shares of Common Stock on whose behalf the registration has been made.

     5.  Registration Expenses.

         5.1  Corporation's Expenses. All expenses incident to the Corporation's
performance of or compliance with this Agreement, including without limitation
all registration and filing fees, fees and expenses of compliance with
securities or blue sky laws, listing fees, printing expenses, messenger and
delivery expenses, and fees and disbursements of counsel for the Corporation and
all independent certified public accountants, underwriters (excluding discounts
and commissions) and other Persons retained by the Corporation (all such
expenses being herein called "Registration Expenses") shall be borne by the
Corporation.

         5.2  Reimbursement. In connection with each Demand Registration, the
Corporation will reimburse the holders of Purchaser Registrable Shares covered
by such registration for the reasonable fees and disbursements of one counsel
chosen by the holders of a majority of the Purchaser Registrable Shares
initially requesting such registration. In connection with each Demand
Registration and each Piggyback Registration, the Corporation shall reimburse
the holders of Purchaser Registrable Shares included in such registration for
the reasonable fees and disbursements of each additional counsel retained by any
holder of Purchaser Registrable Shares for the purpose of rendering any legal
opinion required by the Corporation or the managing underwriter(s) to be
rendered on behalf of such holder in connection with any underwritten Demand
Registration or Piggyback Registration.

         5.3  Holder's Expenses. Notwithstanding anything to the contrary
contained herein, each holder of Purchaser Registrable Shares shall bear and pay
all underwriting discounts and commissions and transfer taxes applicable to the
Purchaser Registrable Shares sold for such holder's account.

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     6.  Indemnification.

         6.1 By the Corporation. The Corporation agrees to indemnify, to the
extent permitted by law, each holder of Purchaser Registrable Shares, its
managers, officers and directors and each Person who controls such holder
(within the meaning of the Securities Act) against all losses, claims, damages,
liabilities and expenses (including without limitation, attorneys' fees)
("Liabilities") caused by any untrue or alleged untrue statement of material
fact contained in any registration statement, prospectus or preliminary
prospectus, or any amendment thereof or supplement thereto, or any omission or
alleged omission of a material fact required to be stated therein or necessary
to make the statements therein not misleading, except insofar as the same are
caused by or contained in any information furnished in writing to the
Corporation by such holder expressly for use therein or by such holder's failure
to deliver a copy of the registration statement or prospectus or any amendments
or supplements thereto after the Corporation has furnished such holder with a
sufficient number of copies of the same. In connection with an underwritten
offering, the Corporation shall indemnify such underwriters, their officers and
directors and each Person who controls such underwriters (within the meaning of
the Securities Act) to the same extent as provided above with respect to the
indemnification of the holders of Purchaser Registrable Shares. The payments
required by this Section 6.1 will be made periodically during the course of the
investigation or defense, as and when bills are received or expenses incurred.

         6.2 By Each Holder. In connection with any registration statement in
which a holder of Purchaser Registrable Shares is participating, each such
holder shall furnish to the Corporation in writing such information as the
Corporation reasonably requests for use in connection with any such registration
statement or prospectus and, to the extent permitted by law, shall indemnify the
Corporation, its directors and officers and each Person who controls the
Corporation (within the meaning of the Securities Act) against any Liabilities
resulting from any untrue or alleged untrue statement of material fact contained
in the registration statement, prospectus or preliminary prospectus, or any
amendment thereof or supplement thereto, or any omission or alleged omission of
a material fact required to be stated therein or necessary to make the
statements therein not misleading, but only to the extent that such untrue
statement or omission is contained in any information so furnished in writing by
such holder expressly for use in such registration statement or prospectus;
provided that the obligation to indemnify under this Section 6.2 or to
contribute under Section 6.4 below will be several, not joint and several, among
such holders of Purchaser Registrable Shares, and the liability of each such
holder of Purchaser Registrable Shares under this Section 6.2 and under Section
6.4 shall be limited to the net amount received by such holder from the sale of
Purchaser Registrable Shares pursuant to such registration statement.

         6.3 Procedure. Any Person entitled to indemnification hereunder shall
(i) give prompt written notice to the indemnifying party of any claim with
respect to which it seeks indemnification (provided that the failure to give
prompt notice shall not impair any Person's right to indemnification hereunder
to the extent such failure has not prejudiced the indemnifying party) and (ii)
unless in such indemnified party's reasonable judgment a conflict of interest
between such indemnified and indemnifying parties may exist with respect to such
claim, permit such

                                       11
<PAGE>

indemnifying party to assume the defense of such claim with counsel reasonably
satisfactory to the indemnified party. If such defense is assumed, the
indemnifying party will not be subject to any liability for any settlement made
by the indemnified party without its consent (but such consent will not be
unreasonably withheld). An indemnifying party who is not entitled to, or elects
not to, assume the defense of a claim will not be obligated to pay the fees and
expenses of more than one counsel for all parties indemnified by such
indemnifying party with respect to such claim, unless in the reasonable judgment
of any indemnified party a conflict of interest may exist between such
indemnified party and any other of such indemnified parties with respect to such
claim.

          6.4  Contribution.  To the extent any indemnification by an
indemnifying party provided for in this Section 6 is prohibited or limited by
law, the indemnifying party, in lieu of indemnifying such indemnified party,
shall contribute to the amount paid or payable by such indemnified party as a
result of such Liabilities in such proportion as is appropriate to reflect the
relative fault of the indemnifying party and the indemnified party in connection
with the statements or omissions which resulted in such Liabilities, as well as
any other relevant equitable considerations. The relative fault of such
indemnifying party and indemnified party shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of material
fact or omission or alleged omission to state a material fact, has been made by,
or relates to information supplied by, such indemnifying party or indemnified
party, and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.

          The parties hereto agree that it would not be just and equitable if
contribution pursuant to this Section 6.4 were determined by pro rata allocation
or by any other method of allocation which does not take account of the
equitable considerations referred to in the immediately preceding paragraph;
provided that the limits in the final proviso of Section 6.2 shall apply to this
Section 6.4. No Person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any Person who was not guilty of such fraudulent
misrepresentation.

          6.5  Other Indemnification Provisions.  The indemnification and
contribution provided for under this Agreement will remain in full force and
effect regardless of any investigation made by or on behalf of the indemnified
party or any officer, director or controlling Person of such indemnified party
and will survive the transfer of securities.

     7.  Compliance with Rule 144.  In the event that the Corporation (a)
registers a class of securities under Section 12 of the Exchange Act, (b) issues
an offering circular meeting the requirements of Regulation A under the
Securities Act, or (c) commences to file reports under Section 13 or 15(d) of
the Exchange Act, then at the request of any holder who proposes to sell
securities in compliance with Rule 144 of the Commission, the Corporation will
(i) forthwith furnish to such holder, upon request, a written statement of
compliance with the filing requirements of the Commission as set forth in Rule
144, as such rule may be amended from time to time, and (ii) use its reasonable
best efforts to make available to the public and such holders such information
as will enable the holders to make sales pursuant to Rule 144.

                                      12
<PAGE>

     8.  Participation in Underwritten Registrations.  No Person may participate
in any registration hereunder which is underwritten unless such Person (a)
agrees to sell its shares of Common Stock on the basis provided in any
underwriting arrangements approved by the Corporation or any other Person or
Persons entitled to approve such arrangements, and (b) completes and executes
all questionnaires, powers of attorney, custody agreements, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements. Each Person that is participating in any
registration hereunder agrees that, upon receipt of any notice from the
Corporation of the happening of any event of the kind described in Section 4(d)
above, such Person will forthwith discontinue the disposition of its Purchaser
Registrable Shares pursuant to the registration statement until such Person's
receipt of the copies of a supplemented or amended prospectus as contemplated by
such Section 4(d). In the event the Corporation shall give any such notice, the
applicable time period mentioned in Section 4(b) during which a registration
statement is to remain effective shall be extended by the number of days during
the period from and including the date of the giving of such notice pursuant to
this Section 8 to and including the date when each seller of Purchaser
Registrable Shares covered by such registration statement shall have received
the copies of the supplemented or amended prospectus contemplated by Section
4(d).

     9.  Intentionally Omitted.

     10.  Miscellaneous.

          10.1  Assignment of Registration Rights.  The registration rights of
the Purchaser under this Agreement with respect to any Purchaser Registrable
Shares may be assigned to any Person who acquires such Purchaser Registrable
Shares; provided that (a) the Purchaser shall give the Corporation written
notice at or prior to the time of such assignment stating the name and address
of the assignee and identifying the shares with respect to which the rights
under this Agreement are being assigned; (b) such assignee shall agree in
writing, in form and substance reasonably satisfactory to the Corporation, to be
bound as the Purchaser by the provisions of this Agreement; and (c) immediately
following such assignment the further disposition of such securities by such
assignee is restricted under the Securities Act.

          10.2  No Inconsistent Agreements.  The Corporation is not a party to
and will not hereafter enter into any agreement with respect to its securities
which is inconsistent with or violates the rights granted to the holders of
Purchaser Registrable Shares in this Agreement.

          10.3  Adjustments Affecting Purchaser Registrable Shares.  The
Corporation will not take any action, or permit any change to occur, with
respect to its securities which would materially and adversely affect the
ability of the holders of Purchaser Registrable Shares to include such Purchaser
Registrable Shares in a registration undertaken pursuant to this Agreement or
which would adversely affect the marketability of such Purchaser Registrable
Shares in any such registration (including, without limitation, effecting a
stock split or a combination of shares).

                                       13
<PAGE>

          10.4   Successors and Assigns.  Except as otherwise expressly provided
herein, all covenants and agreements contained in this Agreement by or on behalf
of any of the parties hereto will bind and inure to the benefit of the
respective permitted successors and assigns of the parties hereto, whether so
expressed or not.

          10.5   Severability.  Whenever possible, each provision of this
Agreement will be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Agreement is held to be prohibited
by or invalid under applicable law, such provision will be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of this Agreement.

          10.6   Descriptive Headings.  The descriptive headings of this
Agreement are inserted for convenience of reference only and do not constitute a
part of, and shall not be utilized in interpreting, this Agreement.

          10.7   Notices.  Any notices required or permitted to be sent
hereunder shall be delivered personally or mailed, certified mail, return
receipt requested, or delivered by overnight courier service to the following
addresses, or such other address as any party hereto designates by written
notice to the Corporation, and shall be deemed to have been given upon delivery,
if delivered personally, three days after mailing, if mailed, or one business
day after delivery to the courier, if delivered by overnight courier service:

If to the Corporation, to:

          divine interVentures, inc.
          4225 Naperville Road
          Suite 400
          Lisle, Illinois  60532
          Attention:  General Counsel

with a copy to:

          Katten Muchin & Zavis
          525 West Monroe Street
          Suite 1600
          Chicago, Illinois  60661
          Attention:  Matthew S. Brown, Esq.

     If to the Purchasers or other holders of Purchaser Registrable Shares, to
the addresses set forth in the stock records of the Corporation.

          10.8   Governing Law.  All questions concerning the construction,
validity and interpretation of this Agreement, and the performance of the
obligations imposed by this
                                       14
<PAGE>

Agreement, shall be governed by the laws of the State of Delaware applicable to
contracts made and wholly to be performed in that state.

          10.9   Amendments and Waivers. The provisions of this Agreement may be
amended upon the written agreement of the Corporation and the holder or holders
of at least a majority of the outstanding Purchaser Registrable Shares. Any
waiver, permit, consent or approval of any kind or character on the part of any
holders of any provision or condition of this Agreement must be made in writing
and shall be effective only to the extent specifically set forth in writing.

          10.10  Final Agreement.  This Agreement, constitutes the complete and
final agreement of the parties concerning the matters referred to herein and
supersedes all prior agreements and understandings.

          10.11  Execution.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed an
original, and such counterparts together shall constitute one instrument.

          10.12  No Strict Construction.  The language used in this Agreement
will be deemed to be the language chosen by the parties hereto to express their
mutual intent, and no rule of strict construction will be used against any
party.

                  [Remainder of page intentionally left blank
                           Signature page follows.]

                                       15
<PAGE>

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

                                       DIVINE INTERVENTURES, INC.

                                       By: /s/ Michael P. Cullinane
                                          ------------------------------------
                                           Michael P. Cullinane
                                           Executive Vice President

                                       CMGI, INC

                                       By: /s/ William Williams II
                                          ------------------------------------
                                       Its: Vice President and General Counsel
                                           -----------------------------------

          (SIGNATURE PAGE TO SERIES E REGISTRATION RIGHTS AGREEMENT)<PAGE>

                                                                   Exhibit 10.20

                              PURCHASE AGREEMENT

                            DATED FEBRUARY 3, 2000

                                    BETWEEN

                          DIVINE INTERVENTURES, INC.

                                      AND

                                  CMGI, INC.
<PAGE>

                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>

                                                                          Page
 <S> <C>                                                                     <C>
 1.  Authorization and Closing...............................................1
     1A.    Authorization of the Series E Preferred Stock
            and Class A Common Stock.........................................1
     1B.    Purchase and Sale of the Series E Preferred Stock
            and Class A Common Stock.........................................1
     1C.    The Closing......................................................2
     1D.    HSR Condition....................................................2
     1E.    HSR Filings......................................................2
     1F.    Termination......................................................3

 2.  Conditions of the Parties' Obligations at the Initial Closing...........3
     2A.    Certificate of Designation and Certificate of Incorporation......3
     2B.    Bylaws...........................................................3
     2C.    Representations and Warranties; Covenants........................3
     2D.    Registration Agreement...........................................4
     2E.    Intentionally Omitted............................................4
     2F.    Series E Stockholders Agreement..................................4
     2G.    Opinion of the Company's Counsel.................................4
     2H.    Officer's Certificate............................................4
     2I.    Company Resolutions..............................................4
     2J.    Purchaser Resolutions............................................4
     2K.    Consents.........................................................5

 3.  Covenants...............................................................5
     3A.    Financial Statements and Other Information.......................5
     3B.    Inspection of Property...........................................7
     3C.    Equity Issuances.................................................7
     3D.    Strategic Relationship...........................................9
     3E.    Exclusivity......................................................9
     3F.    Compliance with Rule 144.........................................9
     3G.    Termination.....................................................10
     3H     Repurchase of Securities........................................10
</TABLE>

                                       1
<PAGE>

<TABLE>
 <S> <C>                                                                     <C>
 4.  Representations and Warranties of the Company...........................10
     4A.    Organization, Corporate Power and Licenses.......................10
     4B.    Capital Stock and Related Matters................................10
     4C.    Authorization; No Breach.........................................11
     4D.    Financial Statements.............................................12
     4E.    Absence of Undisclosed Liabilities...............................12
     4F.    No Material Adverse Change.......................................12
     4G.    Litigation, etc..................................................12
     4H.    Brokerage........................................................13
     4I.    Governmental Consent, etc........................................13
     4J.    Compliance with Laws.............................................13
     4K.    Investment Company...............................................13
     4L.    Disclosure.......................................................13
     4M.    Intellectual Property............................................14
     4N.    Investment Representations.......................................14

 5.  Definitions.............................................................16

 6.  Miscellaneous...........................................................19

     6A.    Expenses.........................................................19
     6B.    Remedies.........................................................19
     6C.    Purchaser's Representations......................................19
     6D.    Consent to Amendments............................................23
     6E.    Survival of Representations and Warranties.......................23
     6F.    Successors and Assigns...........................................23
     6G.    Severability.....................................................24
     6H.    Counterparts.....................................................24
     6I.    Descriptive Headings; Interpretation.............................24
     6J.    Generally Accepted Accounting Principles.........................24
     6K.    Governing Law....................................................24
     6L.    Notices..........................................................24
     6M.    No Strict Construction...........................................24
     6N.    Company Indemnification..........................................24
     6O.    Purchase Indemnification.........................................26
     6P.    Legends..........................................................26
     6Q.    Lock-up Agreements...............................................28
</TABLE>

                                       2
<PAGE>

                           DIVINE INTERVENTURES, INC.

                               PURCHASE AGREEMENT

          THIS PURCHASE AGREEMENT (this "Agreement") is made as of February 3,
2000 between divine interVentures, inc., a Delaware corporation (the "Company"),
and CMGI, Inc., a Delaware corporation (the "Purchaser" ). Except as otherwise
indicated herein, capitalized terms used herein are defined in Section 5 hereof.

          WHEREAS, the parties desire to enter into a long-term strategic
relationship as further described herein.

          WHEREAS, as part of such strategic relationship, Purchaser desires to
make an investment in the Company, and the Company desires to make an investment
in Purchaser, on the terms and conditions described herein and in the
Transaction Documents.

          WHEREAS, such strategic relationship and the agreement entered into by
the parties hereto in connection therewith, is a condition to the execution and
delivery of this Agreement and the issuance to the Purchaser of the Company's
equity securities and the issuance to the Company of the Purchaser's equity
securities.

          NOW THEREFORE, in consideration of the mutual promises contained in
this Agreement and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties to this Agreement
hereby agree as follows:

              Section 1   Authorization and Closing.
                          -------------------------

              1A. Authorization of the Series E Preferred Stock and Class A
Common Stock The Company shall authorize the issuance and sale to the Purchaser
of an aggregate of 20,000,000 shares of its Series E Senior Participating
Convertible Redeemable Preferred Stock, par value $0.001 per share (the "Series
E Preferred Stock"), having the rights and preferences set forth in the
Certificate of Designation of Series E Senior Participating Convertible
Redeemable Preferred Stock attached as Exhibit A hereto (the "Certificate of
Designation") and an aggregate of that number of shares of Class A Common Stock
described in Section 1B(ii) below. The Series E Preferred Stock is convertible
into shares of the Company's Class A Common Stock, par value $0.001 per share
("Class A Common Stock").

              1B. Purchase and Sale of the Series E Preferred Stock and Class A
Common Stock. The Company shall sell to the Purchaser, and subject to the terms
and conditions set forth herein, the Purchaser shall purchase from the Company:

                  (i) At the Initial Closing, 18,284,327 shares of Series E
     Preferred Stock at a purchase price of $1.00 per share, for an aggregate
     purchase price of
<PAGE>

     $18,284,327, which purchase price shall be paid in immediately available
     funds.

              (ii) Upon the consummation of a Qualified IPO, that number of
     shares of Class A Common Stock such that, immediately after the issuance
     thereof, Purchaser shall be the beneficial owner of 4.9% of the Class A
     Common Stock of the Company (determined in accordance with Rule 13d-3 of
     the Securities Exchange Commission promulgated under the Securities
     Exchange Act), for a price per share equal to that stated on the face of
     the prospectus in connection with the Qualified IPO as the price per share
     to the public of the Company's Class A Common Stock in the Qualified IPO,
     which purchase price shall be payable by the issuance of the CMGI Shares.

          1C. The Closing. The consummation of the purchase of the Series E
Preferred Stock and the Class A Common Stock hereunder shall take place as
follows:

              (i) Subject to Section 1D below and Section 2, the closing of the
     purchase and sale of the Series E Preferred Stock to the Purchaser (the
     "Initial Closing") shall take place at the offices of Katten Muchin Zavis,
     525 West Monroe Street, Chicago, IL 60661 at 10:00 a.m. three (3) business
     days after such date as the conditions in Section 1D and Section 2 below
     shall have been satisfied. At the Initial Closing, the Company shall
     deliver a stock certificate evidencing all of the shares of the Series E
     Preferred Stock to be purchased by Purchaser hereunder, registered in
     Purchaser's name, upon payment of the aggregate purchase price therefore,
     by wire transfer in immediately available funds to an account designated by
     the Company to the Purchaser at least two (2) business days prior to the
     Initial Closing.

              (ii) Subject to Section 1D below, the closing of the purchase and
     sale of the Class A Common Stock to the Purchaser (the "Subsequent
     Closing") shall take place at the offices of Katten Muchin Zavis, 525 West
     Monroe Street, Chicago, IL 60661 at 10:00 a.m. on such time that is the
     later of (a) simultaneous with the consummation of the Qualified IPO, or
     (b) three (3) business days after such date as the conditions in Section 1D
     shall have been satisfied. At the Subsequent Closing, the Company shall
     deliver a stock certificate evidencing all of the shares of the Class A
     Common Stock to be purchased by Purchaser hereunder, registered in
     Purchaser's name, upon the issuance of the CMGI Shares registered in the
     Company's name.

          1D. HSR Conditions. Notwithstanding anything to the contrary herein,
neither the Initial Closing nor the Subsequent Closing shall occur unless and
until any filings required to be made by the Company and the Purchaser under the
HSR Act shall have been made and the waiting period with respect thereto shall
have expired or been terminated.

          1E. HSR Filings. As promptly as practicable after the date of this
Agreement, each of the parties hereto will make any filings required by the HSR
Act to be made by it in order to consummate the transactions contemplated
hereby, and each party hereto will cooperate with the other party hereto in
connection with any such filings required by the HSR Act. Notwithstanding
anything to the contrary contained herein, nothing in this Agreement will
require
                                       2
<PAGE>

any Person, whether pursuant to an order of the Federal Trade Commission or the
United States Department of Justice or otherwise, to dispose of any assets,
lines of business or equity interests, or otherwise take any action that would
materially affect its business, in order to obtain the consent of the Federal
Trade Commission or the United States Department of Justice to the transactions
contemplated by this Agreement. Each of the parties hereto shall promptly
provide the other party (or its counsel) copies of all filings made and any
materials submitted in connection with the HSR Act.

          1F. Termination. This Agreement may be terminated at any time prior to
the consummation of the Initial Closing or the Subsequent Closing, as
applicable, under the following described circumstances:

              (i) with respect to the Initial Closing and the Subsequent
     Closing, upon the mutual written consent of the Company and the Purchaser;

              (ii) with respect to the Initial Closing and the Subsequent
     Closing, by either of the Company or the Purchaser if the Initial Closing
     shall not have been consummated on or before March 10, 2000 or such later
     date as the parties may mutually agree, provided that the right to
     terminate this Agreement under this subsection 1F(ii) shall not be
     available to any party whose willful failure to fulfill any material
     obligation under this Agreement has been the cause of, or resulted in, the
     failure of the Initial Closing to occur on or before such date; or

              (iii) with respect to the Subsequent Closing by either of the
     Company or the Purchaser if the Qualified IPO shall not have been
     consummated prior to the twelve month anniversary of the Initial Closing.

          Section 2 Conditions of the Parties' Obligations at the Initial
Closing. The obligation of the Purchaser to purchase and pay for the Series E
Preferred Stock at the Initial Closing, and for the Company to sell such Series
E Preferred Stock, is subject to the execution and delivery of the parties of
those agreements, and the taking of such other actions, before or simultaneous
with the Initial Closing as follows:

          2A. Certificate of Designation and Certificate of Incorporation. The
Company shall deliver evidence that its Certificate of Incorporation, as amended
to include the provisions set forth in the Certificate of Designation (as the
Certificate of Incorporation is in effect at the Signing, the "Amended
Certificate"), have been filed with the Secretary of State of Delaware and are
in full force and effect under the laws of the State of Delaware as of the
Initial Closing.

          2B. Bylaws. The Company shall deliver a copy of its amended and
restated bylaws (as in effect as of the Initial Closing, the "Bylaws").

          2C. Representations and Warranties; Covenants. The representations and
warranties contained in Section 4 and Section 6 hereof shall be true and correct
at and as of the
                                       3
<PAGE>

Initial Closing as though then made, except to the extent of changes caused by
the transactions expressly contemplated herein, and the Company and the
Purchaser shall have performed in all material respects all of the covenants
required to be performed by them hereunder prior to the Initial Closing.

          2D.  Registration Agreement. The Company and the Purchaser shall
execute and deliver a registration rights agreement in the form of Exhibit B
hereto (as may be amended, restated and supplemented from time to time in
accordance with its terms, the "Registration Agreement"), and the Registration
Agreement shall be in full force and effect as of the Initial Closing.

          2E.  Intentionally Omitted.

          2F.  Series E Stockholders Agreement. The Company and the Purchaser
shall execute and deliver a Series E stockholders agreement in the form of
Exhibit C hereto (as may be amended, restated and supplemented from time to time
in accordance with its terms, the "Series E Stockholders Agreement"), and the
Series E Stockholders Agreement shall be in full force and effect as of the
Initial Closing.

          2G.  Opinion of the Company's Counsel. Katten Muchin Zavis, counsel
for the Company, shall deliver to the Purchaser an opinion, the form of Exhibit
D hereto, dated as of the Initial Closing.

          2H.  Officer's Certificate. Each of the Company and the Purchaser
shall deliver to the other an Officer's Certificate, stating that (i) the
conditions described in Sections 2A through 2G (inclusive), 2I through 2K have
been satisfied; (ii) such party has made all filings under all applicable
federal and state securities laws necessary to consummate the transactions
contemplated by this Agreement in compliance with such laws; and (iii) all
corporate and other proceedings required to be taken by such party in connection
with the transactions contemplated hereby to be consummated at or prior to the
Initial Closing have been taken.

          2I.  Company Resolutions. The Company shall deliver to the Purchaser
at the Initial Closing the resolutions certified by the secretary of the Company
as having been duly adopted by the Board, authorizing the execution, delivery
and performance of this Agreement, the Registration Agreement, the Series E
Stockholders Agreement and each of the other agreements contemplated hereby or
thereby (collectively, the "Transaction Documents") to which the Company is
party, the filing of the Certificate of Designation referred to in Section 2A,
the issuance and sale of the Series E Preferred Stock and Class A Common Stock
hereunder and, the reservation of a sufficient number of shares of Class A
Common Stock for issuance upon conversion of the Series E Preferred Stock
purchased hereunder.

          2J.  Purchaser Resolutions. The Purchaser shall deliver to the Company
at the Initial Closing the resolutions certified by the secretary of the
Purchaser as having been duly adopted by its Board of Directors, authorizing the
execution, delivery and performance of this Agreement, the Registration
Agreement, the Series E Stockholders Agreement and each

                                       4
<PAGE>

of the other Transaction Documents to which the Purchaser is a party, and the
issuance and sale of the CMGI Shares hereunder.

          2K.  Consents. (i) Each of the Company and the Purchaser shall have
obtained and delivered to the other copies of all third party and governmental
consents, approvals and filings required in connection with the consummation of
the transactions hereunder (including, without limitation, all blue sky law
filings; waivers of all preemptive rights and rights of first refusal and all
waivers required under any agreements to which the Company is party), and (ii)
the Company shall have obtained the approval of the Board.

          Section 3  Covenants.

          3A.  Financial Statements and Other Information. After the Initial
Closing, the Company shall deliver to the Purchaser so long as such Person holds
the Underlying Class A Common Stock acquired by such Person at the Initial
Closing:

               (i) as soon as available but in any event within forty-five (45)
     days after the end of each quarterly accounting period in each fiscal year,
     unaudited consolidating and consolidated statements of income and cash
     flows of the Company and its Subsidiaries for such quarterly period and for
     the period from the beginning of the fiscal year to the end of such quarter
     (such statements of income and cash flows shall also include disclosure of
     the operating results of the Company disaggregated from the operating
     results of the Company's Subsidiaries and Partner Companies), and unaudited
     consolidating and consolidated balance sheets of the Company and its
     Subsidiaries as of the end of such quarterly period, setting forth in each
     case comparisons to the Company's annual budget and to the corresponding
     period in the preceding fiscal year, and all such statements shall be
     prepared in accordance with GAAP and shall be certified by the chief
     financial officer of the Company or an officer holding an equivalent
     position;

               (ii) accompanying the financial statements referred to in
     subsection 3A(i), an Officer's Certificate stating that neither the Company
     nor any of its Subsidiaries is in default under any of its other material
     agreements or, if any such default exists, specifying the nature and period
     of existence thereof and what actions the Company and its Subsidiaries have
     taken and propose to take with respect thereto;

               (iii) within ninety (90) days after the end of each fiscal year,
     consolidating and consolidated statements of income and cash flows of the
     Company and its Subsidiaries for such fiscal year, and consolidating and
     consolidated balance sheets of the Company and its Subsidiaries as of the
     end of such fiscal year, setting forth in each case comparisons to the
     Company's annual budget and to the preceding fiscal year, all prepared in
     accordance with GAAP and accompanied by (a) with respect to the
     consolidated portions of such statements, an opinion containing no
     exceptions or qualifications (except for qualifications regarding specified
     contingent liabilities) of an

                                       5
<PAGE>

     independent accounting firm of recognized national standing reasonably
     acceptable to the Purchaser and (b) a copy of such firm's annual management
     letter to the Board;

               (iv) within forty-five (45) days after the end of each fiscal
     quarter, unaudited statements of income and cash flows for each of the
     Company's Subsidiaries and Partner Companies for such fiscal quarter, and
     unaudited balance sheets for each of the Company's Subsidiaries and Partner
     Companies as of the end of such fiscal quarter, in the case of the Partner
     Companies to the extent available;

               (v) promptly upon receipt thereof, any additional reports,
     management letters or other detailed information concerning significant
     aspects of the Company's operations or financial affairs given to the
     Company by its independent accountants (and not otherwise contained in
     other materials provided hereunder);

               (vi) at least ninety (90) days after the beginning of each fiscal
     year, an annual budget prepared on a monthly basis for the Company and its
     Subsidiaries for such fiscal year (displaying anticipated statements of
     income and cash flows and balance sheets) as approved by a majority of the
     Board, and promptly upon preparation thereof any other significant budgets
     prepared by the Company and any revisions of such annual or other budgets;

               (vii)  promptly (but in any event within ten (10) business days)
     after the discovery or receipt of notice of any material default under any
     material agreement to which the Company or any of its Subsidiaries is a
     party or any other material adverse change, event or circumstance affecting
     the Company or any Subsidiary (including, without limitation, the filing of
     any material litigation against the Company or any Subsidiary or the
     existence of any dispute with any Person which involves a reasonable
     likelihood of such litigation being commenced), an Officer's Certificate
     specifying the nature and period of existence thereof and what actions the
     Company and its Subsidiaries have taken and propose to take with respect
     thereto;

               (viii) within ten (10) days after transmission or occurrence
     thereof, copies of all financial statements, proxy statements, reports and
     any other general written communications which the Company sends to its
     shareholders or the financial community, copies of all registration
     statements and all regular, special or periodic reports which it files, or
     any of its officers or directors file with respect to the Company, with the
     Securities and Exchange Commission or with any securities exchange on which
     any of its securities are then listed, and notice of any event which might
     have a significant effect on the Company's business prospects or financial
     condition or the Purchaser's investment in the Series E Preferred Stock;

               (ix) on a quarterly basis, any reports delivered to the Executive
     Committee members, as the form of such reports may be agreed upon from time
     to time

                                       6
<PAGE>

     between the Company and the Executive Committee, regarding the assets (and
     the valuation thereof) and income of the Company; and

               (x) with reasonable promptness, such other information and
     financial data concerning the Company and its Subsidiaries as any Person
     entitled to receive information under this Section 3A may reasonably
     request.

Each of the financial statements referred to in subsection 3A(i) and 3A(iii)
shall be true and correct in all material respects as of the dates and for the
periods stated therein, subject in the case of the unaudited financial
statements to changes resulting from normal recurring year-end adjustments,
shall be consistent with the books and records of the Company and shall present
fairly the consolidated financial condition of the Company and its Subsidiaries
as of and for the periods set forth therein.

Except as otherwise required by law or judicial order or decree or by any
governmental agency or authority, the Purchaser shall use its reasonable best
efforts to maintain the confidentiality of all nonpublic information obtained by
it under this Section 3A which is proprietary or confidential in nature;
provided that the Purchaser may disclose such information in connection with the
sale or transfer or proposed sale or transfer of any Underlying Class A Common
Stock, if the transferee or proposed transferee agrees in writing to be bound by
this provision.

For purposes of this Agreement and the Registration Agreement, all holdings of
the Class A Common Stock and Underlying Class A Common Stock by Persons who are
Affiliates of each other shall be aggregated for purposes of meeting any
threshold tests under this Agreement or the Registration Agreement.

          3B.  Inspection of Property. After the Initial Closing, the Company
shall permit representatives designated by the Purchaser (so long as the
Purchaser holds the shares of Underlying Class A Common Stock acquired by such
Person at the Initial Closing), upon reasonable notice and during normal
business hours and at such other times as such Person may reasonably request, to
(i) visit and inspect any of the properties of the Company and its Subsidiaries,
(ii) examine the corporate and financial records of the Company and its
Subsidiaries and make copies thereof or extracts therefrom, and (iii) discuss
the affairs, finances and accounts of any such corporations with the directors,
officers, key employees and independent accountants of the Company and its
Subsidiaries. The presentation of an executed copy of this Agreement by the
Purchaser or any other permitted holder of Underlying Class A Common Stock to
the Company's independent accountants shall constitute the Company's permission
to its independent accountants to participate in discussions with such Persons.

          3C.  Equity Issuances.

               (i) If after the date hereof the Company authorizes the issuance
     or sale of any Equity Securities, the Company shall offer to sell to each
     holder of Underlying Class A Common Stock a portion of such stock or
     securities equal to the quotient

                                       7
<PAGE>

     determined by dividing (1) the number of shares of Underlying Class A
     Common Stock held by such holder by (2) the total number of shares of
     Common Stock outstanding on a fully diluted basis. Each holder of
     Underlying Class A Common Stock shall be entitled to purchase such stock or
     securities at the most favorable price and on the most favorable terms as
     such stock or securities are to be offered to any other Persons. The
     purchase price for all stock and securities offered to the holders of the
     Underlying Common Stock shall be payable in cash; provided that, if other
     Persons are to pay for such Equity Securities in whole or in part with
     consideration other than cash, then the Board, in its sole discretion,
     shall make a determination of the fair market value of such consideration,
     and each holder of Underlying Class A Common Stock will be entitled to
     purchase the Equity Securities for cash equal to the fair market value of
     the aggregate cash and non-cash consideration each of them would otherwise
     pay hereunder. Notwithstanding the foregoing, none of the holders of
     Underlying Class A Common Stock will be permitted to exercise its rights
     under this Section 3C unless it agrees to purchase its proportionate amount
     of each class or series of securities offered as a package or unit in the
     issuance of the Equity Securities.

               (ii) In order to exercise its purchase rights hereunder, a holder
     of Underlying Class A Common Stock must, within 30 days after receipt of
     written notice from the Company describing in reasonable detail the stock
     or securities being offered, the purchase price thereof, the payment terms
     and such holder's percentage allotment, deliver a written notice to the
     Company describing its election hereunder (including the amount of Equity
     Securities it so elects to purchase); provided that funding the purchase of
     Equity Securities may be subject to the expiration or termination of any
     applicable waiting period under the HSR Act. If all of the stock and
     securities offered to the holders of Underlying Class A Common Stock is not
     fully subscribed by such holders, the remaining stock and securities shall
     be reoffered by the Company to the holders purchasing their full allotment
     upon the terms set forth in this Section 3C, except that such holders must
     exercise their purchase rights within five days after receipt of such
     reoffer.

               (iii)  Upon the expiration of the offering periods described
     above, the Company shall be entitled to sell such stock or securities which
     the holders of Underlying Class A Common Stock have not elected to purchase
     during the 60 days following such expiration on terms and conditions no
     more favorable to the purchasers thereof than those offered to such
     holders. Any stock or securities offered or sold by the Company after such
     60-day period must be reoffered to the holders of Underlying Class A Common
     Stock pursuant to the terms of this Section 3C.

               (iv) The Company shall promptly deliver to holders of Underlying
     Class A Common Stock certificates evidencing the Equity Securities
     purchased by each such party hereunder, upon receipt of payment therefor,
     and upon execution of such documents and instruments as shall govern the
     issuance of such Equity Securities (which documents and instruments shall
     be substantially the same as those governing the issuance of the Equity
     Securities to other Persons).

                                       8
<PAGE>

               (v) Notwithstanding anything to the contrary herein, the rights
     of the holders of Underlying Class A Common Stock under this Section 3C may
     be waived on behalf of all holders of Underlying Class A Common Stock by
     the vote of the holders of at least a majority of the outstanding
     underlying Class A Common Stock; provided that only Persons not
     participating in the relevant financing may be counted towards, and
     participate in, such vote.

          3D.  Strategic Relationship. So long as Purchaser and its Affiliates
hold at least 75% of the Underlying Class A Common Stock and the Class A Common
Stock purchased hereunder, it is the intention of the parties, without creating
any legal obligations, to utilize, demonstrate and promote the products,
services and other offerings of each other's Affiliates to the extent that such
products and services meet the requirements and competitive price/performance
specifications of other such Affiliates, subject to negotiation of acceptable
terms and conditions including intellectual property rights, pricing, timing and
availability, and further subject to existing contractual commitments, and
provided such products, services and other offerings are not competitive with
those of such Affiliates.  The Company and Purchaser shall each designate a
corporate officer as an "Executive Coordinator" who shall be responsible for all
overall maters pertaining to this Section 3D.  The initial Executive Coordinator
for Purchaser shall be Laura Montgomery.  The initial Executive Coordinator for
the Company shall be Scott Hartkopf.  The responsibilities of the Executive
Coordinators are as follows:

               (i) Administer and coordinate the overall aspects of the
     strategic relationship between the parties;

               (ii) Arrange meetings, visits and consultations, including at
     least one conversation every two weeks, between the parties concerning the
     strategic relationship; and

               (iii)  Review and approve plans for marketing and other programs
     to be administered under the strategic relationship.  All expenditures
     arising under the strategic relationship must be approved by both Executive
     Coordinators.

          3E.  Exclusivity.  To induce the Purchaser to enter into the
agreements contained herein and in the Transaction Documents, the Company hereby
agrees that for the shorter of (i) the eighteen (18) months following the
Initial Closing, or (ii) such time as Purchaser and its Affiliates no longer
holds at least 75% of the Underlying Class A Common Stock and Class A Common
Stock purchased hereunder, it will not enter into any strategic arrangement
similar to the transactions contained in this Agreement with any of Idealab!,
Internet Capital Group, Inc., Softbank Corp., or Safeguard Scientifics, Inc.

          3F.  Compliance with Rule 144. At the request of any holder who
proposes to sell CMGI Shares in compliance with Rule 144 of the Securities and
Exchange Commission, the Purchaser will (i) forthwith furnish to such holder,
upon request, a written statement of compliance with the filing requirements of
the Securities and Exchange Commission as set forth in Rule 144, as such rule
may be amended from time to time, and (ii) use its reasonable best

                                       9
<PAGE>

efforts to make available to the public and such holders such information as
will enable the holders to make sales pursuant to Rule 144.

          3G.  Termination.  Notwithstanding anything to the contrary herein,
the provision of Section 3A through 3C shall terminate on a Qualified IPO.

          3H.  Repurchase Right.  The parties acknowledge and agree that
Purchaser may wish to maintain its beneficial ownership interest in the Company
at a level lower than five percent (5%) of the total Class A Common Stock of the
Company and therefore agree as follows:

               (i) If for any reason, other than as a direct result of purchases
     or other direct of indirect voluntary acquisitions of securities of the
     Company by Purchaser and its Subsidiaries, Purchaser and its Subsidiaries
     beneficially owns or will beneficially own five percent (5%) or more of the
     outstanding shares of Class A Common Stock of the Company,

                    (a) Purchaser will have the right to sell back and the
     Company will be obligated to purchase that number of shares of common stock
     of the Company at Current Market Value (as defined below) as is necessary
     to reduce, or in anticipation of a proposed action by the Company that
     would result in increasing Purchaser's beneficial ownership of Class A
     Common Stock of the Company above five percent (5%) to maintain Purchaser's
     beneficial ownership interest below five percent (5%);

                    (b) In the event the Company does not have sufficient funds
     to permit Purchaser to exercise its rights under Section 3H(i)(b), or is
     restricted under applicable corporate law from purchasing sufficient shares
     of common stock of the Company, (x) Purchaser will have the right to sell,
     and the Company will be obligated to purchase, the maximum number of shares
     of common stock of the Company that the Company has funds to purchase
     and/or is legally permitted to purchase; (y) the Company will make
     reasonable efforts to raise sufficient funds to remove any legal obstacles
     so as to enable it to fulfill its obligation pursuant to Section 3H(i)(b)
     in the event the Company is unable to repurchase sufficient shares of
     common stock of the Company to satisfy its obligation pursuant to Section
     3H(i)(b), subject to Section 6Q below, Purchaser will receive an additional
     demand registration right which will accelerate and become effective
     immediately and the Company will fully reimburse Purchaser for all costs
     and expenses in reducing its beneficial ownership below five percent (5%)
     and for any difference between the price per share payable pursuant to
     Section 3H(i)(b) assuming that the maximum number of shares of common stock
     of the Company were purchased at the Current Market Value as of the date on
     which Purchaser gave notice of its intent to sell shares of common stock of
     the Company pursuant to Section 3H(i)(b) and the net proceeds eventually
     received by Purchaser through the sale of shares of common stock of the
     Company pursuant to the additional demand registration right.

               (ii) "Current Market Value" shall mean the average closing price
     as publicly reported for the Nasdaq Stock Market as of 4:15 p.m. Eastern
     Time of the common stock of the Company over the last twenty (20) trading
     days ending two (2)

                                       10
<PAGE>

     trading days prior to the buy-back date. The following example is inserted
     solely for purposes of clarification of the preceding sentence: assume the
     date on which Purchaser exercises its right is Tuesday February 1, 2000,
     then the specified twenty- (20-) trading day period will end on and include
     Friday, January 28, 2000.

               (iii)  The Company will not enter into any restrictive agreements
     or take any other actions that would impose any restrictions on or
     otherwise adversely affect Purchaser's right to maintain, at its option, a
     beneficial  ownership level below five percent (5%) of the total Class A
     Common Stock of the Company, including authorizing any class of common
     stock other than the Class A Common Stock and Class B Common Stock of the
     Company currently authorized.

               (iv) For purposes of this Section 3H, beneficial ownership shall
     be determined in accordance with Rule 13d-3 of the Securities Exchange
     Commission promulgated under the Securities Exchange Act.

          Section 4   Representations and Warranties of the Company.

          As a material inducement to the Purchaser to enter into this Agreement
and purchase the Series E Preferred Stock and Class A Common Stock hereunder,
the Company hereby represents and warrants that:

          4A.  Organization, Corporate Power and Licenses. The Company is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and is qualified to do business in every jurisdiction
in which its ownership of property or conduct of business requires it to
qualify. The Company possesses all requisite corporate power and authority and
all material licenses, permits and authorizations necessary to own and operate
its properties, to carry on its businesses as now conducted and presently
proposed to be conducted and to carry out the transactions contemplated by this
Agreement and the other Transaction Documents to which the Company is a party.

          4B.  Capital Stock and Related Matters.

               (i) The attached Capitalization Schedule accurately sets forth
     the following information with respect to the Company's capitalization as
     of the date hereof and immediately thereafter:  (1) the authorized capital
     stock of the Company, (2) the number of shares of each class of capital
     stock issued and outstanding, (3) the number of shares of each class of
     capital stock reserved for issuance upon exercise of options, warrants,
     convertible securities or other rights to acquire the Company's capital
     stock, (4) the name of each holder of capital stock and the amount of stock
     owned by each such holder and (5) with respect to all outstanding options,
     warrants and rights to acquire the Company's capital stock:  the holder,
     the number of shares covered, the exercise price or conversion price, the
     vesting schedule and the expiration date, and all of the agreements or
     understandings entered into by the Company in connection with the issuance
     thereof or, if applicable, the conversion, exchange or exercise thereof.

                                       11
<PAGE>

               (ii) Neither the Company nor any of its Subsidiaries shall have
     outstanding any stock or securities convertible or exchangeable for any
     shares of its capital stock or containing any profit participation
     features, nor shall it have outstanding any rights or options to subscribe
     for or to purchase its capital stock or any stock or securities convertible
     into or exchangeable for its capital stock or any stock appreciation rights
     or phantom stock plans, except as set forth on the Capitalization Schedule.
     Neither the Company nor any Subsidiary shall be subject to any obligation
     (contingent or otherwise) to repurchase or otherwise acquire or retire any
     shares of its capital stock or any warrants, options or other rights to
     acquire its capital stock, except as set forth on the Capitalization
     Schedule.  All of the outstanding shares of the Company's capital stock
     shall be validly issued, fully paid and nonassessable, and the Class A
     Common Stock issuable upon conversion of the Series E Preferred Stock will,
     when issued, be duly authorized and validly issued, fully paid and
     nonassessable.

               (iii)  There are no statutory preemptive rights or rights of
     refusal with respect to the issuance of the Series E Preferred Stock or
     Class A Common Stock Preferred Stock hereunder or the issuance of Class A
     Common Stock upon conversion of the Series E Preferred Stock or exercise of
     any of the outstanding options to acquire the Company Stock and the Company
     is not bound by any contractual pre-emptive rights or rights of first
     refusal except as expressly contemplated herein nor, to the knowledge of
     the Company, is any other Person.  Except as set forth on the
     Capitalization Schedule, the Company has not violated any applicable
     federal or state securities laws in connection with the offer, sale or
     issuance of any of its capital stock, and the offer, sale and issuance of
     the Series E Preferred Stock or Class A Common Stock hereunder do not
     require registration under the Securities Act or any applicable state
     securities laws.  To the best of the Company's knowledge after due inquiry,
     except as  expressly contemplated herein or as set forth on the
     Capitalization Schedule, there are no agreements between the Company's
     shareholders with respect to the voting or transfer of the Company's
     capital stock or with respect to any other aspect of the Company's affairs.

               (iv) Upon issuance in accordance with the terms hereof, the
     Series E Preferred Stock and the Class A Common Stock to be purchased
     hereunder will be duly and validly issued, fully paid, non-assessable and,
     and the Purchaser will have good and marketable title to such shares, free
     and clear of all liens, claims and encumbrances of any kind, other than (a)
     transfer restrictions hereunder and under the Transaction Documents
     (including Sections 6P and 6Q below), (b) transfer restrictions under
     federal and state securities laws and (c) liens, claims or encumbrances
     imposed due to the actions of the Purchaser.

                                       12
<PAGE>

          4C.  Authorization; No Breach.

               (i)  The execution, delivery and performance of this Agreement
     and each of the other Transaction Documents to which the Company is a
     party, and the filing of the Certificate of Designation, will have been
     duly authorized by the Company as of the Initial Closing. This Agreement,
     each of the other Transaction Documents to which the Company is a party and
     the Amended Certificate will each constitute a valid and binding obligation
     of the Company, enforceable in accordance with its terms as of the Initial
     Closing.

               (ii)  The execution and delivery by the Company of this Agreement
     and each of the other Transaction Documents to which the Company is a
     party, the offering, sale and issuance of the Series E Preferred Stock and
     Class A Common Stock hereunder, the issuance of Class A Common Stock upon
     conversion of the Series E Preferred Stock, the adoption of the Certificate
     of Designation and the fulfillment of and compliance with the respective
     terms hereof and thereof by the Company, do not and shall not as of the
     Initial Closing (i) conflict with or result in a breach of the terms,
     conditions or provisions of, (ii) constitute a default under, (iii) result
     in the creation of any lien, security interest, charge or encumbrance upon
     the Company's or any Subsidiary's capital stock or assets pursuant to, (iv)
     give any third party the right to modify, terminate or accelerate any
     obligation under, (v) result in a violation of, or (vi) require any
     authorization, consent, approval, exemption or other action by or notice or
     declaration to, or filing with, any court or administrative or governmental
     body or agency pursuant to, the Amended Certificate or the Bylaws or the
     charter or bylaws of any Subsidiary of the Company, or any law, statute,
     rule or regulation to which the Company or any Subsidiary is subject, or
     any agreement, instrument, order, judgment or decree to which the Company
     or any Subsidiary is subject, other than filings required under the HSR
     Act.

          4D.  Financial Statements.  Attached hereto as the "Financial
Statements Schedule" is the unaudited balance sheet of the Company as of
September 30, 1999 (the "Latest Balance Sheet"), which Latest Balance Sheet is
accurate and complete in all material respects, is consistent with the books and
records of the Company (which, in turn, are accurate and complete in all
material respects) and has been prepared in accordance with GAAP (except for the
absence of footnotes and year-end accruals) and presents fairly the financial
condition of the Company as of the date set forth therein.

          4E.  Absence of Undisclosed Liabilities.  The Company and its
Subsidiaries do not have any material obligation or liability (whether accrued,
absolute, contingent, unliquidated or otherwise, whether or not known to the
Company or any Subsidiary, whether due or to become due and regardless of when
asserted) arising out of transactions entered into at or prior to the Signing,
or any action or inaction at or prior to the Signing, or any state of facts
existing at or prior to the Signing other than: (i) liabilities set forth on the
Latest Balance Sheet (including any notes thereto), (ii) liabilities under
executory contracts and (iii) liabilities and obligations which have arisen
after the date of the Latest Balance Sheet in the ordinary course of business
(none of

                                      13
<PAGE>

which is a liability resulting from breach of contract, breach of warranty,
tort, infringement, claim or lawsuit).

          4F.  No Material Adverse Change.  Since September 30, 1999, there has
been no material adverse change in the financial condition, operating results,
assets, operations, business prospects, employee relations or customer or
supplier relations of the Company and its Subsidiaries taken as a whole.

          4G.  Litigation, etc.  There are no actions, suits, proceedings or
orders pending or, to the best of the Company's knowledge, threatened against or
affecting the Company or any Subsidiary (or to the best of the Company's
knowledge, pending or threatened against or affecting any of the officers,
directors or employees of the Company and its Subsidiaries with respect to the
Company's or its Subsidiaries' businesses or proposed business activities), or
pending or threatened by the Company or any Subsidiary against any third party,
at law or in equity, or before or by any governmental department, commission,
board, bureau, agency or instrumentality (including, without limitation, any
actions, suit, proceedings or investigations with respect to the transactions
contemplated by this Agreement); and there is no basis for any of the foregoing.
Neither the Company nor any Subsidiary is subject to any judgment, order or
decree of any court or other governmental agency.

          4H.  Brokerage.  There are no claims for brokerage commissions,
finders' fees or similar compensation in connection with the transactions
contemplated by this Agreement based on any arrangement or agreement binding
upon the Company or any Subsidiary.

          4I.  Governmental Consent, etc.  Except for any filings required under
the HSR Act, no permit, consent, approval or authorization of, or declaration to
or filing with, any governmental authority is required in connection with the
execution, delivery and performance by the Company of this Agreement or the
Transaction Documents to which the Company is a party, or the consummation by
the Company of any other transactions contemplated hereby or thereby. The
Company has not paid any filing fees for any Person (other than the Company)
required in connection with any filing under the HSR Act.

          4J.  Compliance with Laws.

               (i)   Neither the Company nor any Subsidiary has violated in the
     past, or is currently in material violation of, any material law or any
     material governmental rule, regulation or requirement, including, without
     limitation, the 1940 Act, the Securities Act and the HSR Act, and neither
     the Company nor any Subsidiary has received notice of any such violation.

               (ii)  The written statements, private placement memorandum,
     documents, certificates or other items supplied by the Company to all other
     purchasers of its capital stock or securities prior to the date hereof did
     not contain any untrue statement of a

                                      14
<PAGE>

     material fact or omit to disclose a material fact necessary to make each
     statement contained therein not misleading

          4K.  Investment Company.  The Company is not an investment company
required to be registered as such under the 1940 Act.

          4L.  Disclosure.  Neither this Agreement nor any of the exhibits,
schedules, attachments, written statements, documents, certificates or other
items supplied to the Purchaser by or on behalf of the Company (including,
without limitation, the private placement memorandum) with respect to the
transactions contemplated hereby contain any untrue statement of a material fact
or omit a material fact necessary to make each statement contained herein or
therein not misleading.

          4M.  Intellectual Property.

               (i)  Ownership or Right to Use.  The Company or one of its
     Subsidiaries has sole title to and owns, or is licensed or otherwise
     possesses legally enforceable rights to use, or reasonably expects that it
     will be able to obtain licenses or legally enforceable rights to use, all
     material patents or patents or patent applications, software, know-how,
     registered or unregistered trademarks and service marks and any
     applications therefor, registered or unregistered copyrights and trade
     names any applications therefor, trade secrets or other confidential or
     proprietary information ("Intellectual Property") necessary to enable the
     Company and its Subsidiaries to carry on their respective businesses as
     currently conducted or as proposed to be conducted.

               (ii)  Licenses; Other Agreements.  Except as set forth on the
     "Licenses Schedule", there are not outstanding any material licenses or
     agreements of any kind relating to the licensure by the Company of any
     Intellectual Property owned by the Company or any of its Subsidiaries,
     except for agreements with customers of the Company or any such Subsidiary
     entered into in the ordinary course of business. Neither the Company nor
     any of its Subsidiaries is obligated to pay any material royalties or other
     payments to third parties with respect to the marketing, sale,
     distribution, manufacture, license or use of any Intellectual Property
     (other than off the shelf commercial applications), except as it may be so
     obligated in the ordinary course of its business.

               (iii)  No Infringement.  Neither the Company nor any of its
     Subsidiaries is violating or infringing, and neither the Company nor any of
     its Subsidiaries has received any communication alleging that either the
     Company, any of its Subsidiaries or any of their respective employees or
     consultants has violated or infringed, any Intellectual Property of any
     other Person, except where such violation or infringement would not
     reasonably be expected to have a material adverse effect on the Company and
     its Subsidiaries, taken as a whole.

               (iv)  Materiality.  Notwithstanding anything to the contrary
     herein, for

                                      15
<PAGE>

     purposes of this Section 4M "materiality" shall be determined by reference
     to the existence or absence of an item or matter that would reasonably be
     expected to have a material adverse effect on the Company and is
     Subsidiaries taken as a whole, and not with respect to any one Subsidiary.

          4N.  Investment Representations.

               (i)  Investment Purpose.  The Company (i) is acquiring the CMGI
     Shares for its own account for investment only and not with a view towards,
     or for resale in connection with, the public sale or distribution thereof,
     except pursuant to sales registered or exempted under the Securities Act.

               (ii)  Accredited Investor Status.  The Company is an "accredited
     investor" as that term is defined in Rule 501(a)(3) of Regulation D.

               (iii)  Reliance on Exemptions.  The Company understands that the
     CMGI Shares are being offered and sold to it in reliance on specific
     exemptions from the registration requirements of United States federal and
     state securities laws and that the Purchaser is relying in part upon the
     truth and accuracy of, and the Company's compliance with, the
     representations, warranties and agreements of the Company set forth herein
     in order to determine the availability of such exemptions and the
     eligibility of the Company to acquire such securities.

               (iv)  Information.  The Company has been furnished with all
     materials relating to the business, finances and operations of the
     Purchaser and materials relating to the offer and sale of the CMGI Shares
     which have been requested by Company. The Company has been afforded the
     opportunity to ask questions of the Company. The Company understands that
     its investment in the CMGI Shares involves a high degree of risk,
     including, without limitation, matters discussed under the caption
     "Management's Discussion and Analysis" in Purchasers Annual Report on Form
     10-K for the fiscal year ended July 31, 1999. The Company understands that
     Purchaser had made and is making no representation regarding the future
     performance of Purchaser or the future market value of the CMGI Shares. The
     Company has sought such accounting, legal and tax advice as it has
     considered necessary to make an informed investment decision with respect
     to its acquisition of the CMGI Shares. Without limiting the generality of
     the foregoing, the Company has received and has had the opportunity to
     review certain information relating to Purchaser and the CMGI shares,
     including, without limitation, copies of the following:

                    (a)  Purchaser's Annual Report on Form 10-K for the fiscal
     year ended July 31, 1999, as filed with the Securities and Exchange
     Commission (the "SEC") (excluding any exhibits thereto except for Exhibits
     13.1, 13.2 and 13.3 thereto) on October 29, 1999;

                                       16
<PAGE>

               (b)  The Purchaser's Quarterly Report on Form 10-Q for the period
     ended October 31, 1999 as filed with the SEC on December 15, 1999
     (excluding any exhibits thereto);

               (c)  The Purchaser's Proxy Statement for the 1999 Annual
     Stockholders Meeting as filed with the SEC on November 17, 1999;

               (d)  The Purchaser's Current Report on Form 8-K as filed with the
     SEC on August 12, 1999 (excluding any exhibits thereto);

               (e)  The Purchaser's Current Report on Form 8-K as filed with the
     SEC on September 2, 1999 (excluding any exhibits thereto);

               (f)  The Purchaser's Current Report on Form 8-K as filed with the
     SEC on September 3, 1999 (excluding any exhibits thereto);

               (g)  Purchaser's Current Report on Form 8-K as filed with the SEC
     on September 27, 1999 (excluding any exhibits thereto);

               (h)  Purchaser's Current Report on Form 8-K as filed with the SEC
     on October 1, 1999 (excluding any exhibits thereto);

               (i)  The Purchaser's Current Report on Form 8-K/A as filed with
     the SEC on November 1, 1999 (excluding exhibits thereto);

               (j)  The Purchaser's Current Report on Form 8-K/A as filed with
     the SEC on November 17, 1999 (excluding any exhibits thereto);

               (k)  The Purchaser's Current Reports on Forms 8-K each as filed
     with the SEC on December 17, 1999 (excluding any exhibits thereto); and

               (l)  The Purchaser's Current Report on Form 8-K as filed with the
     SEC on January 24, 2000 (excluding any exhibits thereto).

          (v)  No Governmental Review.  The Company understands that no United
     States federal or state agency or any other government or governmental
     agency has passed on or made any recommendation or endorsement of the CMGI
     Shares or the fairness or suitability of the investment in the CMGI Shares
     nor have such authorities passed upon or endorsed the merits of the
     offering of the CMGI Shares.

          (vi)  Transfer or Resale.  The Company understands that: (a) the CMGI
     Shares have not been and are not being registered under the Securities Act
     or any state securities laws, and may not be offered for sale, sold,
     assigned or transferred unless (A) subsequently registered thereunder or
     (B) sold in reliance on an exemption therefrom; and (b) neither the CMGI
     nor any other person is under any obligation to register such CMGI

                                      17
<PAGE>

     Shares under the Securities Act or any state securities laws or to comply
     with the terms and conditions of any exemption thereunder. The Company is
     able to bear the economic risk of its investment in the CMGI Shares for an
     indefinite period of time.

          (vii)  Sophistication.  The Company has knowledge and experience in
     financial and business matters, knows of the high degree of risk associated
     with investments generally, is capable of evaluating the merits and risks
     of an investment in the CMGI Shares and is able to bear the economic risk
     of an investment in the CMGI Shares in the amount contemplated. The Company
     has adequate means of providing for its current financial needs and
     contingencies and will have no current or anticipated future needs for
     liquidity which would be jeopardized by the investment in the CMGI Shares.
     The Company can afford a complete loss of its investment in the CMGI
     Shares.

          Section 5  Definitions.  For the purposes of this Agreement, the
following terms have the meanings set forth below:

          "Affiliate" of any particular Person means any other Person
controlling, controlled by or under common control with such particular Person,
where "control" means the possession, directly or indirectly, of the power to
direct the management and policies of a Person whether through the ownership of
voting securities, contract or otherwise.

          "CMGI Shares" means that number of shares of the common stock of the
Purchaser equal to (a) the aggregate purchase price for the Class A Common Stock
being sold to Purchaser pursuant to Section 1B(ii) hereof, divided by (b) the
average of the last reported sales price per share of the common stock of
Purchaser on the Nasdaq National Market over the five consecutive trading days
ending on the trading day that is three days prior to (but not including) the
Subsequent Closing Date.

          "Equity Securities" means (i) any shares of common capital stock in
the Company, whether now authorized or not, (ii) any rights, options or warrants
to purchase any such common capital stock, or to purchase securities that may
become convertible into, exercisable for or exchangeable for such common capital
stock, and (iii) any securities convertible into, exercisable for or
exchangeable for common capital stock in the Company, and (iv) notes or debt
securities containing equity or profit participation features; provided,
however, Equity Securities shall not include (a) securities issued or issuable
to employees, consultants or members of the Board for the purpose of soliciting
or retaining their services to the extent approved by the Board or compensation
committee thereof, (b) securities offered by the Company pursuant to a Public
Offering, (c) securities issued as a dividend on, subdivision of or other
distribution in respect of all Common Stock, (d) securities issued upon
conversion, exercise or exchange of any previously issued Equity Securities so
long as such securities are issued pursuant to the terms of such previously
issued Equity Securities as in effect at the time of such prior issuance, (e)
securities issued to financial institutions in connection with senior or
subordinated indebtedness of the Company, (f) securities issued to strategic
partners (i.e. Persons not principally in the business of acting as a financial
investor providing capital through equity investments or Persons not otherwise

                                      18
<PAGE>

principally acting in such a capacity with respect to their investment in the
Company) determined to be such by the Board, or (g) securities issued pursuant
to the acquisition of another Person by the Company by merger, purchase of
substantially all of the assets of such other entity, or by other transaction or
reorganization whereby the Company ends up owning, directly or indirectly,
greater than fifty percent (50%) of the equity and voting power of such entity
or otherwise controls such entity.

          "Executive Committee" means the Executive Committee of the Board.

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

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
1976, as amended, and the Premerger Notification Rules promulgated thereunder.

          "1940 Act" means the Investment Company Act of 1940, as amended.

          "Officer's Certificate" means a certificate signed by the Company's or
Purchaser's president or its chief financial officer, stating that (i) the
officer signing such certificate has made or has caused to be made such
investigations as are necessary in order to permit him to verify the accuracy of
the information set forth in such certificate and (ii) to the best of such
officer's knowledge, such certificate does not misstate any material fact and
does not omit to state any fact necessary to make the certificate not
misleading.

          "Partner Company" means any Person which is not a Subsidiary and of
which the Company owns any equity security (i) equal to or greater than 20% of
the common stock (on a fully-diluted basis) of such Person, or (ii) with a cost
to the Company in excess of $20,000,000.

          "Person" means an individual, a partnership, a corporation, a limited
liability company, an association, a joint stock company, a trust, a joint
venture, an unincorporated organization and a governmental entity or any
department, agency or political subdivision thereof.

          "Public Offering" means an underwritten public offering pursuant to an
effective  registration statement filed by the Company (or any successor entity
to the Company) with the Securities and Exchange Commission under the Securities
Act with respect to common equity of the Company (or any successor entity to the
Company).

          "Qualified IPO" shall have the meaning given such term in the
Certificate of Designation.

          "Securities Act" means the Securities Act of 1933, as amended, or any
similar federal law then in force.

                                       19
<PAGE>

          "Securities and Exchange Commission" includes any governmental body or
agency succeeding to the functions thereof.

          "Securities Exchange Act" means the Securities Exchange Act of 1934,
as amended, or any similar federal law then in force.

          "Subsidiary" means, with respect to any Person, any corporation,
limited liability company, partnership, association or other business entity of
which (i) if a corporation, a majority of the total voting power of shares of
stock entitled (without regard to the occurrence of any contingency) to vote in
the election of directors, managers or trustees thereof is at the time owned or
controlled, directly or indirectly, by that Person or one or more of the other
Subsidiaries of that Person or a combination thereof, or (ii) if a limited
liability company, partnership, association or other business entity, a majority
of the partnership or other similar ownership interest thereof is at the time
owned or controlled, directly or indirectly, by any Person or one or more
Subsidiaries of that Person or a combination thereof.  For purposes hereof, a
Person or Persons shall be deemed to have a majority ownership interest in a
limited liability company, partnership, association or other business entity if
such Person or Persons shall be allocated a majority of limited liability
company, partnership, association or other business entity gains or losses or
shall be or control any managing director or general partner of such limited
liability company, partnership, association or other business entity.

          "Underlying Class A Common Stock" means (i) the Class A Common Stock
issued or issuable upon conversion of the Series E Preferred Stock issued at
Closing and (ii) any Class A Common Stock issued or issuable with respect to the
securities referred to in clause (i) above by way of stock dividend or stock
split or in connection with a combination of shares, recapitalization, merger,
consolidation or other reorganization.  For purposes of this Agreement, any
Person who holds any shares of Series E Preferred Stock shall be deemed to be
the holder of the Underlying Class A Common Stock obtainable upon conversion of
the Series E Preferred Stock in connection with the transfer thereof or
otherwise regardless of any restriction or limitation on the conversion of the
Series E Preferred Stock, such Underlying Class A Common Stock shall be deemed
to be in existence, and such Person shall be entitled to exercise the rights of
a holder of Underlying Class A Common Stock hereunder.  As to any particular
shares of Underlying Class A Common Stock, such shares shall cease to be
Underlying Class A Common Stock when they have been (a) effectively registered
under the Securities Act and disposed of in accordance with the registration
statement covering them, (b) distributed to the public through a broker, dealer
or market maker pursuant to Rule 144 under the Securities Act (or any similar
provision then in force) or (c) repurchased by the Company or any Subsidiary.

                                       20
<PAGE>

          Section 6   Miscellaneous.

          6A.  Expenses.  The Company shall pay, and hold the Purchaser and all
holders of Series E Preferred Stock, Class A Common Stock and Underlying Class A
Common Stock harmless against liability for the payment of, (i) the fees and
expenses incurred with respect to the enforcement of the rights (in connection
with a breach or threatened breach by the Company) granted under this Agreement,
the other Transaction Documents to which the Company is a party, the Amended
Certificate or the Certificate of Designation and (ii) the fees and expenses
incurred by the holders of a majority of Underlying Class A Common Stock with
respect to defaults or breaches by the Company under this Agreement, the other
Transaction Documents to which the Company is a party, the Amended Certificate
and the Certificate of Designation.  Purchaser shall pay, and hold the Company
and all holders of the CMGI Shares harmless against liability for the payment
of, (i) the fees and expenses incurred with respect to the enforcement of the
rights (in connection with a breach or threatened breach by Purchaser) granted
under this Agreement, or the other Transaction Documents to which Purchaser is a
party and (ii) the fees and expenses incurred by the holders of a majority of
the CMGI Shares with respect to defaults or breaches by Purchaser under this
Agreement, and the other Transaction Documents to which Purchaser is a party.

          6B.  Remedies.  Each holder of the Series E Preferred Stock, Class A
Common Stock and Underlying Class A Common Stock shall have all rights and
remedies set forth in this Agreement and the Certificate of Designation (or as
may be amended) and all rights and remedies which such holders have been granted
at any time under any other agreement or contract and all of the rights which
such holders have under any law.  Each holder of CMGI Shares shall have all
rights and remedies set forth in this Agreement and all rights and remedies
which such holders have been granted at any time under any other agreement or
contract and all of the rights which such holders have under any law.  Any
Person having any rights under any provision of this Agreement shall be entitled
to enforce such rights specifically (without posting a bond or other security),
to recover damages by reason of any breach of any provision of this Agreement
and to exercise all other rights granted by law.

          6C.  Purchaser's Representations.  The Purchaser hereby represents and
warrants to the Company that:

               (i)    Investment Purpose.  Purchaser (i) is acquiring the Series
     E Preferred Stock or Class A Common Stock and (ii) upon conversion of the
     Series E Preferred Stock, will acquire the Underlying Class A Common Stock
     then issuable (the Series E Preferred Stock, the Series A Common Stock and
     the Underlying Class A Common Stock collectively are referred to herein as
     the "Securities"), for its own account for investment only and not with a
     view towards, or for resale in connection with, the public sale or
     distribution thereof, except pursuant to sales registered or exempted under
     the Securities Act.

                                       21
<PAGE>

               (ii)   Accredited Investor Status.  Purchaser is an "accredited
     investor" as that term is defined in Rule 501(a)(3) of Regulation D.

               (iii)  Qualified Institutional Buyer.  Purchaser is a "qualified
     institutional buyer", as such term is defined in Rule 144A promulgated
     under the Securities Act.

               (iv)   Reliance on Exemptions.  Purchaser understands that the
     Securities are being offered and sold to it in reliance on specific
     exemptions from the registration requirements of United States federal and
     state securities laws and that the Company is relying in part upon the
     truth and accuracy of, and Purchaser's compliance with, the
     representations, warranties and agreements of Purchaser set forth herein in
     order to determine the availability of such exemptions and the eligibility
     of Purchaser to acquire such securities.

               (v)    Information.  Purchaser has been furnished with all
     materials relating to the business, finances and operations of the Company
     and materials relating to the offer and sale of the Securities which have
     been requested by Purchaser.  Purchaser has been afforded the opportunity
     to ask questions of the Company.  Purchaser understands that its investment
     in the Securities involves a high degree of risk.  Purchaser has sought
     such accounting, legal and tax advice as it has considered necessary to
     make an informed investment decision with respect to its acquisition of the
     Securities.

               (vi)   No Governmental Review.  Purchaser understands that no
     United States federal or state agency or any other government or
     governmental agency has passed on or made any recommendation or endorsement
     of the Securities or the fairness or suitability of the investment in the
     Securities nor have such authorities passed upon or endorsed the merits of
     the offering of the Securities.

               (vi)   Transfer or Resale.  Purchaser understands that except as
     provided in the Registration Agreement: (a) the Securities have not been
     and are not being registered under the Securities Act or any state
     securities laws, and may not be offered for sale, sold, assigned or
     transferred unless (A) subsequently registered thereunder or (B) sold in
     reliance on an exemption therefrom; and (b) neither the Company nor any
     other person is under any obligation to register such securities under the
     Securities Act or any state securities laws or to comply with the terms and
     conditions of any exemption thereunder. Purchaser is able to bear the
     economic risk of its investment in the Securities for an indefinite period
     of time.

               (vii)  Sophistication.  Purchaser has knowledge and experience in
     financial and business matters, knows of the high degree of risk associated
     with investments generally, is capable of evaluating the merits and risks
     of an investment in the Securities and is able to bear the economic risk of
     an investment in the Securities in the amount contemplated. Purchaser has
     adequate means of providing for its current financial needs and
     contingencies and will have no current or anticipated future needs

                                       22
<PAGE>

     for liquidity which would be jeopardized by the investment in the
     Securities. Purchaser can afford a complete loss of its investment in the
     Securities.

               (viii) Authorization; No Breach.

                      (a)  The execution, delivery and performance of this
     Agreement and each of the other Transaction Documents to which Purchaser is
     a party, will have been duly authorized by Purchaser as of the Initial
     Closing. This Agreement and each of the other Transaction Documents to
     which Purchaser is a party will each constitute a valid and binding
     obligation of Purchaser, enforceable in accordance with its terms as of the
     Initial Closing.

                      (b)  The execution and delivery by Purchaser of this
     Agreement and each of the other Transaction Documents to which Purchaser is
     a party, the offering, sale and issuance of the CMGI Shares hereunder and
     the fulfillment of and compliance with the respective terms hereof and
     thereof by Purchaser, do not and shall not as of the Initial Closing (i)
     conflict with or result in a breach of the terms, conditions or provisions
     of, (ii) constitute a default under, (iii) result in the creation of any
     lien, security interest, charge or encumbrance upon the Purchaser's or any
     Subsidiary's capital stock or assets pursuant to, (iv) give any third party
     the right to modify, terminate or accelerate any obligation under, (v)
     result in a violation of, or (vi) require any authorization, consent,
     approval, exemption or other action by or notice or declaration to, or
     filing with, any court or administrative or governmental body or agency
     pursuant to, the charter or bylaws of Purchaser or any Subsidiary, or any
     law, statute, rule or regulation to which Purchaser or any Subsidiary is
     subject, or any agreement, instrument, order, judgment or decree to which
     Purchaser or any Subsidiary is subject, other than filings required under
     the HSR Act.

               (ix)  Capitalization.  Schedule 6C sets forth the entire
     authorized capital stock and the total number of issued and outstanding
     shares of the capital stock of Purchaser as of the Signing.  All of the
     outstanding shares of capital stock of Purchaser are validly issued, fully
     paid and nonassessable, and no shares of capital stock are subject to, or
     have been issued in violation of, preemptive rights.  All issuances, sales
     and repurchases by Purchaser of its shares of capital stock have been
     effected in compliance with all applicable laws, including, without
     limitation, applicable Federal and state securities laws. Except as set
     forth on Schedule 6C, Purchaser has no outstanding securities convertible
     into or exchangeable for shares of its capital stock or containing profit
     participation features, and Purchaser has no outstanding options, warrants
     or rights to subscribe for or to purchase shares of its capital stock or
     securities convertible into or exchangeable for shares of its capital
     stock.  Purchaser is not subject to any obligation (contingent or
     otherwise) to repurchase or otherwise acquire or retire any capital stock
     or any warrants, options or other rights to acquire its capital stock.  To
     Purchaser's knowledge, there are no voting agreements, voting trusts or
     other agreements (including, but not limited to, contractual or statutory
     preemptive rights or cumulative voting rights), commitments or
     understandings with respect to the voting or transfer of the capital stock
     of Purchaser.  The

                                       23
<PAGE>

     CMGI Shares, when issued, sold and delivered in accordance with the terms
     of this Agreement, will be duly and validly issued, fully paid, non-
     assessable and the Company will have good and marketable title to such
     shares, free and clear of all liens, claims and encumbrances of any kind,
     other than (x) transfer restrictions under federal and state securities
     laws, (y) liens, claims or encumbrances imposed due to the actions of the
     Company, and (z) restrictions imposed pursuant to Sections 6P and 6Q below.

               (x)  SEC Filings; Purchaser Financial Statements.  The Purchaser
     has filed all forms, reports and documents required to be filed with the
     Securities Exchange Commission in connection with and from the date of the
     initial public offering of its common stock.  All such required forms,
     reports and documents are referred to herein as the "Purchaser SEC
     Reports."  As of their respective dates, the Purchaser SEC Reports (i)
     complied in all material respects with the requirements of the Securities
     Act or the Securities Exchange Act, as the case may be, and the rules and
     regulations of the Securities Exchange Commission thereunder applicable to
     such Purchaser SEC Reports and (ii) did not at the time they were filed (or
     if amended or superseded by a filing prior to the date of this Agreement,
     then on the date of such filing) contain any untrue statement of a material
     fact or omit to state a material fact required to be stated therein or
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading.  The consolidated
     financial statements (including, in each case, any related notes thereto)
     contained in the Purchaser SEC Reports (the "Purchaser Financials") fairly
     present the financial condition and the results of operations, changes in
     stockholders' equity, and cash flow of Purchaser as of the respective dates
     of and for the periods referred to in such financial statements, all in
     accordance with GAAP, subject, in the case of interim financial statements,
     to normal recurring year-end adjustments (the effect of which could not
     reasonably be expected to, individually or in the aggregate, have a
     material adverse effect) and the absence of notes (that, if presented,
     would not differ materially from those included in the Purchaser
     Financials).  Since the date of filing of the most recent Purchaser SEC
     Report, no event has occurred or circumstance exists with respect Purchaser
     which could reasonably be expected to have a material adverse effect.

               (xi)   Conduct of Ordinary Course.  Since the date of the last
     Purchaser SEC Report, Purchaser has conducted its business only in the
     ordinary course of business consistent with past custom and practice, has
     incurred no liabilities other than in the ordinary course of business
     consistent with past custom and practice and has had no material adverse
     change in its assets, financial condition, operating results or business.

               (xii)  Brokerage.  There are no claims for brokerage commissions,
     finders' fees or similar compensation in connection with the transactions
     contemplated by this Agreement based on any arrangement or agreement
     binding upon Purchaser or any Subsidiary.

               (xiii) Governmental Consent, etc.  Except for any filings
     required under the HSR Act, no permit, consent, approval or authorization
     of, or declaration to or filing

                                       24
<PAGE>

     with, any governmental authority is required in connection with the
     execution, delivery and performance by Purchaser of this Agreement or the
     Transaction Documents to which Purchaser is a party, or the consummation by
     Purchaser of any other transactions contemplated hereby or thereby.

          6D.  Consent to Amendments.  Except as otherwise expressly provided
herein, the provisions of this Agreement may be amended and the Company may take
any action herein prohibited, or omit to perform any act herein required to be
performed by it, only if the Company has obtained the written consent of the
holders of a majority of the Underlying Class A Common Stock.  No other course
of dealing between the Company and the holder of any Underlying Class A Common
Stock or any delay in exercising any rights hereunder or under the Amended
Certificate (as may be amended) shall operate as a waiver of any rights of any
such holders.  For purposes of this Agreement, shares of the Series E Preferred
Stock held by the Company or any Subsidiary (and shares issued or issuable upon
conversion of such Series E Preferred Stock held by the Company or any
Subsidiary) shall not be deemed to be outstanding.

          6E.  Survival of Representations and Warranties.  All of the
representations and warranties contained herein, other than those contained in
Sections 4B, 4C, 4H, 4K and 6C (viii), (ix) and (xii) (each of which shall
survive the Signing indefinitely),  shall survive the Initial Closing for one
(1) year after the date of this Agreement.

          6F.  Successors and Assigns.  Except as otherwise expressly provided
herein, all covenants and agreements contained in this Agreement by or on behalf
of any of the parties hereto shall bind and inure to the benefit of the
respective successors and assigns of the parties hereto whether so expressed or
not.  In addition, and whether or not any express assignment has been made, the
provisions of this Agreement (i) which are for Purchaser's benefit as a
purchaser or holder of shares of the Series E Preferred Stock, Class A Common
Stock or Underlying Class A Common Stock are also for the benefit of, and
enforceable by, any subsequent holder of such Series E Preferred Stock, Class A
Common Stock or such Underlying Class A Common Stock, except that the indemnity
obligations of the Company set forth in Section 6N may be enforced only by the
Purchaser, and (ii) which are for the Company's  benefit as a purchaser or
holder of the CMGI Shares are also for the benefit of, and enforceable by, any
subsequent holder of such CMGI Shares, except that the indemnity obligations of
Purchaser set forth in Section 6O may be enforced only by the Company.

          6G.  Severability.  Whenever possible, each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Agreement is held to be prohibited
by or invalid under applicable law, such provision shall be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of this Agreement.

          6H.  Counterparts.  This Agreement may be executed simultaneously in
two or more counterparts, any one of which need not contain the signatures of
more than one party, but all such counterparts taken together shall constitute
one and the same Agreement.

                                       25
<PAGE>

          6I.  Descriptive Headings; Interpretation. The descriptive headings of
this Agreement are inserted for convenience only and do not constitute a
substantive part of this Agreement. The use of the word "including" in this
Agreement shall be by way of example rather than by limitation.

          6J.  Generally Accepted Accounting Principles. Where any accounting
determination or calculation is required to be made under this Agreement or the
exhibits hereto, such determination or calculation (unless otherwise provided)
shall be made in accordance with generally accepted accounting principles,
consistently applied, except that if because of a change in generally accepted
accounting principles the Company would have to alter a previously utilized
accounting method or policy in order to remain in compliance with generally
accepted accounting principles, such determination or calculation shall continue
to be made in accordance with the Company's previous accounting methods and
policies.

          6K.  Governing Law. The general corporation law of the State of
Delaware shall govern all issues and questions concerning the relative rights
and obligations of the Company and its stockholders. All other issues and
questions concerning the construction, validity, enforcement and interpretation
of this Agreement and the exhibits and schedules hereto shall be governed by,
and construed in accordance with, the laws of the State of Illinois, without
giving effect to any choice of law or conflict of law rules or provisions
(whether of the State of Illinois or any other jurisdiction) that would cause
the application of the laws of any jurisdiction other than the State of
Illinois. In furtherance of the foregoing, the internal law of the State of
Illinois shall control the interpretation and construction of this Agreement
(and all schedules and exhibits hereto), even though under that jurisdiction's
choice of law or conflict of law analysis, the substantive law of some other
jurisdiction would ordinarily apply.

          6L.  Notices. All notices, demands or other communications to be given
or delivered under or by reason of the provisions of this Agreement shall be in
writing and shall be deemed to have been given when delivered personally to the
recipient, sent to the recipient by reputable overnight courier service (charges
prepaid) or mailed to the recipient by certified or registered mail, return
receipt requested and postage prepaid. Such notices, demands and other
communications shall be sent to Purchaser at the address indicated for Purchaser
at the address set forth below or as otherwise indicated on the stock records of
the Company, and to the Company at the address indicated below:

     If to the Company:
                          divine interVentures, inc.
                          4225 Naperville Road, Suite 400
                          Lisle, Illinois  60532
                          Attention: General Counsel

                                       26
<PAGE>

     With a copy to:      Katten Muchin Zavis
                          525 W. Monroe Street
                          Suite 1600
                          Chicago, Illinois 60661-3693
                          Attention: Matthew S. Brown, Esq.

     If to the Purchaser: CMGI, Inc.
                          100 Brickstone Square, 5th Floor
                          Andove, MA  01810
                          Attention: General Counsel

     With a copy to:      Skadden, Arps, Slate, Meagher & Flom LLP
                          One Beacon Street
                          Boston, MA  02108
                          Attention: David T. Brewster, Esq.

or to such other address or to the attention of such other person as the
recipient party has specified by prior written notice to the sending party.

          6M.  No Strict Construction. The parties hereto have participated
jointly in the negotiation and drafting of this Agreement. In the event an
ambiguity or question of intent or interpretation arises, this Agreement shall
be construed as if drafted jointly by the parties hereto, and no presumption or
burden of proof shall arise favoring or disfavoring any party by virtue of the
authorship of any of the provisions of this Agreement.

          6N.  Company Indemnification. In consideration of Purchaser's
execution and delivery of this Agreement and acquiring the Series E Preferred
Stock and Class A Common Stock hereunder and in addition to all of the Company's
other obligations under this Agreement, the Company shall defend, protect,
indemnify and hold harmless Purchaser and all of its officers, directors,
employees and agents (including, without limitation, those retained in
connection with the transactions contemplated by this Agreement) (collectively,
the "Indemnitees") from and against any and all actions, causes of action,
suits, claims, losses, costs, penalties, fees, liabilities and damages, and
expenses in connection therewith (irrespective of whether any such Indemnitee is
a party to the action for which indemnification hereunder is sought), and
including reasonable attorneys' fees and disbursements (the "Indemnified
Liabilities"), incurred by the Indemnitees or any of them as a result of, or
arising out of, or relating to any misrepresentation in or breach of any of the
representations and warranties or any nonfulfillment or breach of any covenant
or agreement on the part of the Company under this Agreement or the Registration
Agreement, provided that the Company shall not be liable to an Indemnitee under
this Section 6N for any liability if such liability is caused solely by such
Indemnitee's fraud, willful misconduct or gross negligence or default or breach
under this Agreement or the Registration Agreement. To the extent that the
foregoing undertaking by the Company may be unenforceable for any reason, the
Company shall make the maximum contribution to the payment and satisfaction of
each of the Indemnified Liabilities which is permissible under applicable law.

                                      27
<PAGE>

          6O.  Purchaser Indemnification.  In consideration of the Company's
execution and delivery of this Agreement and acquiring the CMGI Shares hereunder
and in addition to all of Purchaser's other obligations under this Agreement,
Purchaser shall defend, protect, indemnify and hold harmless the Company and all
of its officers, directors, employees and agents (including, without limitation,
those retained in connection with the transactions contemplated by this
Agreement) (collectively, the "Company Indemnitees") from and against any and
all actions, causes of action, suits, claims, losses, costs, penalties, fees,
liabilities and damages, and expenses in connection therewith (irrespective of
whether any such Company Indemnitee is a party to the action for which
indemnification hereunder is sought), and including reasonable attorneys' fees
and disbursements (the "Company Indemnified Liabilities"), incurred by the
Company Indemnitees or any of them as a result of, or arising out of, or
relating to any misrepresentation in or breach of any of the representations and
warranties or any nonfulfillment or breach of any covenant or agreement on the
part of the Company under this Agreement, provided that the Company shall not be
liable to an Company Indemnitee under this Section 6O for any liability if such
liability is caused solely by such Company Indemnitee's fraud, willful
misconduct or gross negligence or default or breach under this Agreement.  To
the extent that the foregoing undertaking by the Purchaser may be unenforceable
for any reason, the Purchaser shall make the maximum contribution to the payment
and satisfaction of each of the Company Indemnified Liabilities which is
permissible under applicable law.

          6P.  Legends.

               (i) The certificates evidencing the Series E Preferred Stock, the
     Class A Common Stock and the CMGI Shares will include the legend set forth
     below, which  each of the Company and Purchaser has read and understands:

          THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
          SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAW, AND
          MAY NOT BE OFFERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF UNLESS
          REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND ANY
          APPLICABLE STATE SECURITIES LAWS OR AN EXEMPTION FROM SUCH
          REGISTRATION IS AVAILABLE.  THESE SECURITIES ARE ALSO SUBJECT TO AN
          INVESTMENT REPRESENTATION AND LOCKUP AGREEMENT WITH THE CORPORATION
          WHICH RESTRICTS THE TRANSFER THEREOF UNTIL ___________, A COPY OF
          WHICH CAN BE OBTAINED FROM THE CORPORATION AT ITS EXECUTIVE OFFICES.

               (ii) By accepting the certificates bearing the aforesaid legend,
     each of the Purchaser and the Company agrees, prior to any transfer of the
     securities represented by the certificates and subject to the restrictions
     in Section 6Q, to give written notice to the other expressing its desire to
     effect such transfer and describing briefly the proposed transfer. Unless
     such notice relates to securities which the proposed transferor acquired
     (within the meaning of Rule 144 under the Securities Act ("Rule 144"))
     hereunder more than a year prior to the date of such notice and is
     expressing such proposed transferor's

                                       28
<PAGE>

     desire to effect such transfer pursuant to and in compliance with Rule 144,
     upon receiving such notice, the recipient shall present copies thereof to
     its counsel and the following provisions shall apply:

                     (a) if, in the reasonable opinion of counsel acceptable to
     the recipient, the proposed transfer of such securities may be effected
     without registration of such securities under the Securities Act and
     applicable state securities acts, the recipient shall promptly thereafter
     notify the proposed transferor desiring to transfer such securities,
     whereupon the proposed transferor shall be entitled to transfer such
     securities, all in accordance with the terms of the notice delivered by the
     proposed transferor and upon such further terms and conditions as shall be
     required to ensure compliance with the Securities Act and the applicable
     state securities acts, and, upon surrender of the certificate evidencing
     such securities, in exchange therefor, a new certificate not bearing a
     legend of the character set forth above if such counsel reasonably believes
     that such legend is no longer required under the Securities Act and the
     applicable state securities acts; and

                     (b) if, in the reasonable opinion of such counsel, the
     proposed transfer of such securities may not be effected without
     registration of such securities under the Securities Act or the applicable
     state securities acts, a copy of such opinion shall be promptly delivered
     to the proposed transferor, and such proposed transfer shall not be made
     unless such registration is then in effect.

               (ii) Either Purchaser or the Company may, from time to time, make
     stop transfer notations in its records and deliver stop transfer
     instructions to its transfer agent to the extent their respective counsel
     considers it necessary to ensure compliance with the Securities Act and the
     applicable state securities acts.

  6Q.  Lock-up Agreements.

               (i) In order to induce Purchaser to enter into this Agreement,
     until the 12-month anniversary of the Subsequent Closing, the Company shall
     not, directly or indirectly, without the prior written consent of
     Purchaser, sell, offer to sell, contract to sell, assign, transfer or
     otherwise dispose of, or engage in any other transaction (including,
     without limitation, any pledge, collar, hedge or short sale) which reduces
     the risk of ownership of, any of the CMGI Shares. The Company agrees and
     consents to the entry of stop transfer instructions with Purchaser's
     transfer agent against the transfer of the CMGI Shares held by the Company
     except in compliance with the foregoing restrictions.

               (ii) In order to induce the Company to enter into this Agreement,
     until the 12-month anniversary of the Subsequent Closing, in the case of
     the Class A Common Stock purchased hereunder, or the 6-month anniversary of
     the Subsequent Closing, in the case of the Series E Preferred Stock and
     Underlying Class A Common Stock purchased hereunder, Purchaser shall not,
     directly or indirectly, without the prior written consent of the Company,
     sell, offer to sell, contract to sell, assign, transfer or otherwise
     dispose of,

                                       29
<PAGE>

     or engage in any other transaction (including, without limitation, any
     pledge, collar, hedge or short sale) which reduces the risk of ownership
     of, any of such securities. Purchaser agrees and consents to the entry of
     stop transfer instructions with the Company's transfer agent against the
     transfer of the Class A Common Stock, Series E Preferred Stock and
     Underlying Class A Common Stock held by the Company except in compliance
     with the foregoing restrictions.

                 [Remainder of page intentionally left blank.
                            Signature page follows.]

                                       30
<PAGE>

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

                                    DIVINE INTERVENTURES, INC.

                                    By: /s/ Michael P. Cullinane
                                       -----------------------------------
                                        Michael P. Cullinane
                                        Executive Vice President

                                    CMGI, INC.

                                    By: /s/ William Williams II
                                       ------------------------------------
                                    Its: Vice President and General Counsel
                                        -----------------------------------

                     (SIGNATURE PAGE TO PURCHASE AGREEMENT)

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