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                                                                     Exhibit 3.1

                           SECOND AMENDED AND RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                            ENGAGE TECHNOLOGIES, INC.


            Engage Technologies, Inc., a corporation organized and existing
under and by virtue of the General Corporation Law of the State of Delaware,
does hereby certify as follows:

      1. The Corporation filed its original Certificate of Incorporation with
the Secretary of the State of Delaware on July 18, 1995.

      2. At a duly called meeting of the Board of Directors of the Corporation
at which a quorum was present at all times, a resolution was duly adopted,
pursuant to Sections 242 and 245 of the General Corporation Law of the State of
Delaware, setting forth an Amended and Restated Certificate of Incorporation of
the Corporation and declaring said Amended and Restated Certificate of
Incorporation advisable. The stockholders of the Corporation duly approved said
proposed Amended and Restated Certificate of Incorporation by written consent in
accordance with Sections 228, 242 and 245 of the General Corporation Law of the
State of Delaware. The resolution setting forth the Amended and Restated
Certificate of Incorporation is as follows:

RESOLVED: That the Certificate of Incorporation of the Corporation, be and
hereby is amended and restated in its entirety so that the same shall read as
follows:

      FIRST. The name of the Corporation is:

            Engage Technologies, Inc.

      SECOND. The address of its registered office in the State of Delaware is
1013 Centre Road, in the City of Wilmington, County of New Castle. The name of
its registered agent at such address is The Prentice-Hall Corporation.

      THIRD. The nature of the business or purposes to be conducted or promoted
by the Corporation is as follows:

      To engage in any lawful act or activity for which corporations may be
organized under the General Corporation Law of Delaware.
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      FOURTH: The total number of shares of all classes of stock which the
Corporation shall have authority to issue is 155,000,000 shares, consisting of
(i) 150,000,000 shares of Common Stock, $.01 par value per share ("Common
Stock"), and (ii) 5,000,000 shares of Preferred Stock, $.01 par value per share
("Preferred Stock").

      The following is a statement of the designations and the powers,
privileges and rights, and the qualifications, limitations or restrictions
thereof in respect of each class of capital stock of the Corporation.

A. COMMON STOCK.

      1. General. The voting, dividend and liquidation rights of the holders of
the Common Stock are subject to and qualified by the rights of the holders of
the Preferred Stock of any series as may be designated by the Board of Directors
upon any issuance of the Preferred Stock of any series.

      2. Voting. The holders of the Common Stock are entitled to one vote for
each share held at all meetings of stockholders. There shall be no cumulative
voting. The number of authorized shares of Common Stock may be increased or
decreased (but not below the number of shares thereof then outstanding) by the
affirmative vote of the holders of a majority of the stock of the Corporation
entitled to vote, irrespective of the provisions of Section 242(b)(2) of the
General Corporation Law of Delaware.

      3. Dividends. Dividends may be declared and paid on the Common Stock from
funds lawfully available therefor as and when determined by the Board of
Directors and subject to any preferential dividend rights of any then
outstanding Preferred Stock.

      4. Liquidation. Upon the dissolution or liquidation of the Corporation,
whether voluntary or involuntary, holders of Common Stock will be entitled to
receive all assets of the Corporation available for distribution to its
stockholders, subject to any preferential rights of any then outstanding
Preferred Stock.

B. PREFERRED STOCK.

      Preferred Stock may be issued from time to time in one or more series,
each of such series to have such terms as stated or expressed herein and in the
resolution or resolutions providing for the issue of such series adopted by the
Board of Directors of the Corporation as hereinafter provided. Any shares of
Preferred Stock which may be redeemed, purchased or acquired by the Corporation
may be reissued except as otherwise provided by law. Different series of
Preferred Stock shall not be construed to constitute different classes of shares
for the purposes of voting by classes unless expressly provided.

      Authority is hereby expressly granted to the Board of Directors from time
to time to issue the Preferred Stock in one or more series, and in connection
with the creation of any such series, by resolution or resolutions providing for
the issue of the shares thereof, to determine and fix such voting powers, full
or limited, or no voting powers, and such
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designations, preferences and relative participating, optional or other special
rights, and qualifications, limitations or restrictions thereof, including
without limitation thereof, dividend rights, conversion rights, redemption
privileges and liquidation preferences, as shall be stated and expressed in such
resolutions, all to the full extent now or hereafter permitted by the General
Corporation Law of Delaware. Without limiting the generality of the foregoing,
the resolutions providing for issuance of any series of Preferred Stock may
provide that such series shall be superior or rank equally or be junior to the
Preferred Stock of any other series to the extent permitted by law. Except as
otherwise provided in this Certificate of Incorporation, no vote of the holders
of the Preferred Stock or Common Stock shall be a prerequisite to the
designation or issuance of any shares of any series of the Preferred Stock
authorized by and complying with the conditions of this Certificate of
Incorporation, the right to have such vote being expressly waived by all present
and future holders of the capital stock of the Corporation.

      FIFTH. The Corporation shall have a perpetual existence.

      SIXTH. Election of directors need not be by written ballot, except as and
to the extent provided in the By-Laws of the Corporation.

      SEVENTH. Whenever a compromise or arrangement is proposed between this
corporation and its creditors or any class of them and/or between this
corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this corporation or of any creditor or stockholder thereof, or on the
application of any receiver or receivers appointed for this corporation under
the provisions of section 291 of Title 8 of the Delaware Code or on the
application of trustees in dissolution or of any receiver or receivers appointed
for this corporation under the provisions of section 279 of Title 8 of the
Delaware Code order a meeting of the creditors or class of creditors, and/or of
the stockholders or class of stockholders of this corporation, as the case may
be, to be summoned in such manner as the said court directs. If a majority in
number representing three-fourths in value of the creditors or class of
creditors, and/or of the stockholders or class of stockholders of this
corporation, as the case may be, agree to any compromise or arrangement and to
any reorganization of this corporation as consequence of such compromise or
arrangement, the said compromise or arrangement and the said reorganization
shall, if sanctioned by the court to which the said application has been made,
be binding on all the creditors or class of creditors, and/or on all the
stockholders or class of stockholders, of this corporation, as the case may be,
and also on this corporation.

      EIGHTH. Except to the extent that the General Corporation Law of Delaware
prohibits the elimination or limitation of liability of directors for breaches
of fiduciary duty, no director of the Corporation shall be personally liable to
the Corporation or its stockholders for monetary damages for any breach of
fiduciary duty as a director, notwithstanding any provision of law imposing such
liability. No amendment to or repeal of this provision shall apply to or have
any effect on the liability or alleged liability of any director of the
Corporation for or with respect to any acts or omissions of such director
occurring prior to such amendment.
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      NINTH. 1. Actions, Suits and Proceedings Other than by or in the Right of
the Corporation. The Corporation shall indemnify each person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the Corporation), by
reason of the fact that he is or was, or has agreed to become, a director or
officer of the Corporation, or is or was serving, or has agreed to serve, at the
request of the Corporation, as a director, officer, partner, employee or trustee
of, or in a similar capacity with, another corporation, partnership, joint
venture, trust or other enterprise (including any employee benefit plan) (all
such persons being referred to hereafter as an "Indemnitee"), or by reason of
any action alleged to have been taken or omitted in such capacity, against all
expenses (including attorneys' fees), judgments, fines and amounts paid in
settlement actually and reasonably incurred by him or on his behalf in
connection with such action, suit or proceeding and any appeal therefrom, if he
acted in good faith and in a manner he reasonably believed to be in, or not
opposed to, the best interests of the Corporation, and, with respect to any
criminal action or proceeding, had no reasonable cause to believe his conduct
was unlawful. The termination of any action, suit or proceeding by judgment,
order, settlement, conviction or upon a plea of nolo contendere or its
equivalent, shall not, of itself, create a presumption that the person did not
act in good faith and in a manner which he reasonably believed to be in, or not
opposed to, the best interests of the Corporation, and, with respect to any
criminal action or proceeding, had reasonable cause to believe that his conduct
was unlawful.

      2. Actions or Suits by or in the Right of the Corporation. The Corporation
shall indemnify any Indemnitee who was or is a party or is threatened to be made
a party to any threatened, pending or completed action or suit by or in the
right of the Corporation to procure a judgment in its favor by reason of the
fact that he is or was, or has agreed to become, a director or officer of the
Corporation, or is or was serving, or has agreed to serve, at the request of the
Corporation, as a director, officer, partner, employee or trustee of, or in a
similar capacity with, another corporation, partnership, joint venture, trust or
other enterprise (including any employee benefit plan), or by reason of any
action alleged to have been taken or omitted in such capacity, against all
expenses (including attorneys' fees) and, to the extent permitted by law,
amounts paid in settlement actually and reasonably incurred by him or on his
behalf in connection with such action, suit or proceeding and any appeal
therefrom, if he acted in good faith and in a manner he reasonably believed to
be in, or not opposed to, the best interests of the Corporation, except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the Corporation
unless and only to the extent that the Court of Chancery of Delaware shall
determine upon application that, despite the adjudication of such liability but
in view of all the circumstances of the case, such person is fairly and
reasonably entitled to indemnity for such expenses (including attorneys' fees)
which the Court of Chancery of Delaware shall deem proper.

      3. Indemnification for Expenses of Successful Party. Notwithstanding the
other provisions of this Article, to the extent that an Indemnitee has been
successful, on the
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merits or otherwise, in defense of any action, suit or proceeding referred to in
Sections 1 and 2 of this Article, or in defense of any claim, issue or matter
therein, or on appeal from any such action, suit or proceeding, he shall be
indemnified against all expenses (including attorneys' fees) actually and
reasonably incurred by him or on his behalf in connection therewith. Without
limiting the foregoing, if any action, suit or proceeding is disposed of, on the
merits or otherwise (including a disposition without prejudice), without (i) the
disposition being adverse to the Indemnitee, (ii) an adjudication that the
Indemnitee was liable to the Corporation, (iii) a plea of guilty or nolo
contendere by the Indemnitee, (iv) an adjudication that the Indemnitee did not
act in good faith and in a manner he reasonably believed to be in or not-opposed
to the best interests of the Corporation, and (v) with respect to any criminal
proceeding, an adjudication that the Indemnitee had reasonable cause to believe
his conduct was unlawful, the Indemnitee shall be considered for the purposes
hereof to have been wholly successful with respect thereto.

      4. Notification and Defense of Claim. As a condition precedent to his
right to be indemnified, the Indemnitee must notify the Corporation in writing
as soon as practicable of any action, suit, proceeding or investigation
involving him for which indemnity will or could be sought. With respect to any
action, suit, proceeding or investigation of which the Corporation is so
notified, the Corporation will be entitled to participate therein at its own
expense and/or to assume the defense thereof at its own expense, with legal
counsel reasonably acceptable to the Indemnitee. After notice from the
Corporation to the Indemnitee of its election so to assume such defense, the
Corporation shall not be liable to the Indemnitee for any legal or other
expenses subsequently incurred by the Indemnitee in connection with such claim,
other than as provided below in this Section 4. The Indemnitee shall have the
right to employ his own counsel in connection with such claim, but the fees and
expenses of such counsel incurred after notice from the Corporation of its
assumption of the defense thereof shall be at the expense of the Indemnitee
unless (i) the employment of counsel by the Indemnitee has been authorized by
the Corporation, (ii) counsel to the Indemnitee shall have reasonably concluded
that there may be a conflict of interest or position on any significant issue
between the Corporation and the Indemnitee in the conduct of the defense of such
action or (iii) the Corporation shall not in fact have employed counsel to
assume the defense of such action, in each of which cases the fees and expenses
of counsel for the Indemnitee shall be at the expense of the Corporation, except
as otherwise expressly provided by this Article. The Corporation shall not be
entitled, without the consent of the Indemnitee, to assume the defense of any
claim brought by or in the right of the Corporation or as to which counsel for
the Indemnitee shall have reasonably made the conclusion provided for in clause
(ii) above. The Corporation shall not be required to indemnify the Indemnitee
under this Article for any amounts paid in settlement of any Proceeding effected
without its written consent. The Corporation shall not settle any Proceeding in
any manner which would impose any penalty or limitation on Indemnitee without
Indemnitee's written consent. Neither the Corporation nor the Indemnitee will
unreasonably withhold their consent to any proposed settlement.
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      5. Advance of Expenses. Subject to the provisions of Section 6 below, in
the event that the Corporation does not assume the defense pursuant to Section 4
of this Article of any action, suit, proceeding or investigation of which the
Corporation receives notice under this Article, any expenses (including
attorneys' fees) incurred by an Indemnitee in defending a civil or criminal
action, suit, proceeding or investigation or any appeal therefrom shall be paid
by the Corporation in advance of the final disposition of such matter; provided,
however, that the payment of such expenses incurred by an Indemnitee in advance
of the final disposition of such matter shall be made only upon receipt of an
undertaking by or on behalf of the Indemnitee to repay all amounts so advanced
in the event that it shall ultimately be determined that the Indemnitee is not
entitled to be indemnified by the Corporation as authorized in this Article; and
further provided that no such advancement of expenses shall be made if it is
determined that (i) the Indemnitee did not act in good faith and in a manner he
reasonably believes to be in, or not opposed to, the best interests of the
Corporation, or (ii) with respect to any criminal action or proceeding, the
Indemnitee had reasonable cause to believe his conduct was unlawful. Such
undertaking shall be accepted without reference to the financial ability of the
Indemnitee to make such repayment.

      6. Procedure for Indemnification. In order to obtain indemnification or
advancement of expenses pursuant to Section 1, 2, 3 or 5 of this Article, the
Indemnitee shall submit to the Corporation a written request, including in such
request such documentation and information as is reasonably available to the
Indemnitee and is reasonably necessary to determine whether and to what extent
the Indemnitee is entitled to indemnification or advancement of expenses. Any
such indemnification or advancement of expenses, unless ordered by a court shall
be made, with respect to requests under Section 1, 2 or 5, only as authorized in
the specific case upon a determination by the Corporation that the
indemnification of the Indemnitee is proper because the Indemnitee has met the
applicable standard of conduct set forth in Section 1, 2 or 5, as the case
maybe. Such determination shall be made in each instance (a) by a majority vote
of the directors of the Corporation consisting of persons who are not at that
time parties to the action, suit or proceeding in question ("disinterested
directors"), whether or not a quorum, (b) by a majority vote of a committee of
disinterested directors designated by majority vote of disinterested directors,
whether or not a quorum, (c), if there are no disinterested directors, or
ifdisinterested directors so direct, by independent legal counsel (who may, to
the extent permitted by law, be regular legal counsel to the Corporation) in a
written opinion, or (d) by the stockholders of the Corporation.

      7. Remedies. The right to indemnification or advances as granted by this
Article shall be enforceable by the Indemnitee in any court of competent
jurisdiction. Neither the failure of the Corporation to have made a
determination prior to the commencement of such action that indemnification is
proper in the circumstances because the Indemnitee has met the applicable
standard of conduct, nor an actual determination by the Corporation pursuant to
Section 6 that the Indemnitee has not met such applicable standard of conduct,
shall be a defense to the action or create a presumption that the Indemnitee has
not met the applicable standard of conduct. The Indemnitee's expenses (including
attorneys' fees) incurred in connection with successfully establishing his right
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to indemnification, in whole or in part, in any such proceeding shall also be
indemnified by the Corporation.

      8. Limitations. Notwithstanding anything to the contrary in this Article,
except as set forth in Section 7 above, the Corporation shall not indemnify an
Indemnitee seeking indemnification in connection with a proceeding (or part
thereof) initiated by the Indemnitee unless the initiation thereof was approved
by the Board of Directors of the Corporation. Notwithstanding anything to the
contrary in this Article, the Corporation shall not indemnify an Indemnitee to
the extent such Indemnitee is reimbursed from the proceeds of insurance, and in
the event the Corporation makes any indemnification payments to an Indemnitee
and such Indemnitee is subsequently reimbursed from the proceeds of insurance,
such Indemnitee shall promptly refund such indemnification payments to the
Corporation to the extent of such insurance reimbursement.

      9. Subsequent Amendment. No amendment, termination or repeal of this
Article or of the relevant provisions of the General Corporation Law of Delaware
or any other applicable laws shall affect or diminish in any way the rights of
any Indemnitee to indemnification under the provisions hereof with respect to
any action, suit, proceeding or investigation arising out of or relating to any
actions, transactions or facts occurring prior to the final adoption of such
amendment, termination or repeal.

      10. Other Rights. The indemnification and advancement of expenses provided
by this Article shall not be deemed exclusive of any other rights to which an
Indemnitee seeking indemnification or advancement of expenses may be entitled
under any law (common or statutory), agreement or vote of stockholders or
disinterested directors or otherwise, both as to action in his official capacity
and as to action in any other capacity while holding office for the Corporation,
and shall continue as to an Indemnitee who has ceased to be a director or
officer, and shall inure to the benefit of the estate, heirs, executors and
administrators of the Indemnitee. Nothing contained in this Article shall be
deemed to prohibit, and the Corporation is specifically authorized to enter
into, agreements with officers and directors providing indemnification rights
and procedures different from those set forth in this Article. In addition, the
Corporation may, to the extent authorized from time to time by its Board of
Directors, grant indemnification rights to other employees or agents of the
Corporation or other persons serving the Corporation and such rights may be
equivalent to, or greater or less than, those set forth in this Article.

      11. Partial Indemnification. If an Indemnitee is entitled under any
provision of this Article to indemnification by the Corporation for some or a
portion of the expenses (including attorneys' fees), judgments, fines or amounts
paid in settlement actually and reasonably incurred by him or on his behalf in
connection with any action, suit, proceeding or investigation and any appeal
therefrom but not, however, for the total amount thereof, the Corporation shall
nevertheless indemnify the Indemnitee for the portion of such expenses
(including attorneys' fees), judgments, fines or amounts paid in settlement to
which the Indemnitee is entitled.
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      12. Insurance. The Corporation may purchase and maintain insurance, at its
expense, to protect itself and any director, officer, employee or agent of the
Corporation or another corporation, partnership, joint venture, trust or other
enterprise (including any employee benefit plan) against any expense, liability
or loss incurred by him in any such capacity, or arising out of his status as
such, whether or not the Corporation would have the power to indemnify such
person against such expense, liability or loss under the General Corporation Law
of Delaware.

      13. Savings Clause. If this Article or any portion hereof shall be
invalidated on any ground by any court of competent jurisdiction, then the
Corporation shall nevertheless indemnify each Indemnitee as to any expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement in
connection with any action, suit, proceeding or investigation, whether civil,
criminal or administrative, including an action by or in the right of the
Corporation, to the fullest extent permitted by any applicable portion of this
Article that shall not have been invalidated and to the fullest extent permitted
by applicable law.

      14. Definitions. Terms used herein and defined in Section 145(h) and
Section 145(i) of the General Corporation Law of Delaware shall have the
respective meanings assigned to such terms in such Section 145(h) and Section
145(i).

      TENTH. Except as otherwise provided herein, the Corporation reserves the
right to amend, alter, change or repeal any provision contained in this
Certificate of Incorporation, in the manner now or hereafter prescribed by
statute and this Certificate of Incorporation, and all rights conferred upon
stockholders herein are granted subject to this reservation.

      ELEVENTH. Special meetings of stockholders may be called at any time by
only the Chairman of the Board of Directors, the President, the Board of
Directors or the holders of at least 40% of the votes which all stockholders
would be entitled to cast in any annual election of directors. Business
transacted at any special meeting of stockholders shall be limited to matters
relating to the purpose or purposes stated in the notice of meeting.

      TWELFTH. In furtherance and not in limitation of the powers conferred upon
it by the laws of the State of Delaware, the Board of Directors shall have the
power to adopt, amend, alter or repeal the Corporation's By-Laws. The
affirmative vote of a majority of the directors present at any regular or
special meeting of the Board of Directors at which a quorum is present shall be
required to adopt, amend, alter or repeal the Corporation's By-Laws. The
Corporation's By-Laws also may be adopted, amended, altered or repealed by the
affirmative vote of the holders of at least a majority of the votes which all of
the stockholders would be entitled to cast in any annual election of directors.

      THIRTEENTH. The Corporation hereby elects not to be governed by Section
203 of the Delaware General Corporation Law.

      IN WITNESS WHEREOF, the Corporation has caused its corporate seal to be
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affixed hereto and this Certificate of Incorporation to be signed by its
President this 19th day of July, 1999.

                            ENGAGE TECHNOLOGIES, INC.



                            By: /s/ Paul L. Schaut
                                ----------------------------
                                Paul L. Schaut, President