Exhibit 10.15

KEY EMPLOYEE AGREEMENT

This KEY EMPLOYEE AGREEMENT (the "Agreement") is made and entered into as of the 1st day of January, 2002, by and between ValueClick, Inc. a Delaware
corporation (the "Company" or "ValueClick") and Samuel J. Paisley ("Executive").

WHEREAS,
the Company is a global Internet advertising network enabling advertisers to take advantage of the Internet to sell their products and increase brand awareness;

WHEREAS,
Executive possesses unique technical and operational skills which are valuable to the business and financial prospects of the Company;

WHEREAS,
in light of the foregoing, the Company desires to employ Executive as Chief Operating Officer and Executive desires to accept such employment;

NOW
THEREFORE, in consideration of the mutual promises contained herein, Company and Executive agree as follows:

I.Description of Employment Position and Responsibilities.You will serve in the position of Chief
Operating Officer. By executing this offer letter, you agree to assume and discharge such duties and responsibilities as are commensurate with this position and such other duties and responsibilities
that are assigned to you from time to time by the Company's Chief Executive Officer. During the term of your employment, you shall devote your full time, skill and attention to your duties and
responsibilities and shall perform them faithfully, diligently and competently. In addition, you shall comply with and be bound by the operating policies, procedures and practices of the Company in
effect from time to time during your employment. To the fullest extent permitted by Delaware law, Company shall indemnify and defend Executive from all costs, expenses and losses whether direct or
indirect, including consequential damages and attorney's fees, incurred or sustained by Executive in consequence of the lawful discharge of his duties on Company's behalf.

II.Employment Considerations.

2.1At-Will Employment.You acknowledge that your employment with the Company is for an unspecified duration that
constitutes at-will employment, and that either you or the Company can terminate this relationship at any time, with or without Cause (as defined below) and without notice.

III.Compensation.

3.1Base Salary.In consideration of your services, to be effective on January 1, 2002, you will be paid an annual
base salary of $300,000 (Three Hundred Thousand Dollars and no Cents), payable no less frequently than on a monthly basis in accordance with the Company's standard payroll practices ("Standard Payment
Schedule"). Your base salary, in conjunction with your performance evaluation, is normally reviewed annually by the Company's Chief Executive Officer.

3.2Incentive Compensation.In addition to your base salary, you will be entitled to participate in an incentive compensation
plan with the opportunity to receive a yearly bonus of $200,000 (Two Hundred Thousand Dollars and no Cents) upon the achievement of certain milestones as set out in Exhibit A.

IV.Additional Benefits.

4.1Health Insurance/Vacation/Benefit Plans.You will be entitled to receive the standard employee benefits made available by
the Company to its employees to the full extent of your eligibility therefor. You shall be entitled to three (3) weeks of paid vacation per year, the terms and conditions of your vacation
benefits shall be in accordance with the Company's vacation policy in effect at that time. During your employment, you shall be permitted, to the extent eligible, to participate in any group medical,
dental, life insurance and disability insurance plans, or similar benefit plan of the Company that is available to employees generally. Participation in any such plan shall be consistent with your
rate

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of compensation to the extent that compensation is a determinative factor with respect to coverage under any such plan.

4.2Reimbursement of Expenses.The Company shall reimburse you for all reasonable expenses actually incurred or paid by you
in the performance of your services on behalf of the Company, upon prior authorization and approval in accordance with the Company's expense reimbursement policy as from time to time in effect.

4.3Stock Options.Pursuant to Board approval, and under the terms and conditions of the Company's Stock Option Plan and
Stock Option Agreement, including the stock vesting provisions contained therein, you will be granted an option to purchase shares of common stock of the Company as set forth in a Stock Option
Agreement, which will be sent to you separately. In addition to the options set out in your Stock Option Agreement, you may be granted an option to purchase additional shares of common stock from time
to time in the Company's discretion (the options in your Stock Option Agreement and any and all options you may be granted in the future are collectively referred to herein as the "Options").

V.Termination; Change of Control Benefits.

5.1Voluntary Termination; Cause.At any time, if your employment is terminated by the Company with Cause, or if you resign
your employment voluntarily, no compensation or other payments will be paid or provided to you for periods following the date when such a termination of employment is effective, provided that any
rights you may have under the benefit plans of the Company shall be determined under the provisions of those plans. If your employment terminates as a result of your death or disability, no
compensation or payments will be made to you other than those to which you may otherwise be entitled under the benefit plans of the Company.

5.2Change of Control Compensation.In the event there should occur a Change of Control (as defined below), and
(i) your employment by the Company terminates for any reason other than for Cause or on account of your permanent disability or death or (ii) there occurs a Constructive Termination, the
Company will pay to you as severance, in one lump sum amount (unless you indicate in writing to the Company prior to the Company's payment of your election to be paid in installments over a specified
period) an amount equal to one (1) year of your annual base salary in effect immediately prior to the time of such termination. Such amount will be paid by the Company as soon as
administratively possible following such termination, but in all events not later than fifteen (15) days following the effective date of such termination. Such amounts paid will be reduced by
all applicable withholding taxes and other deductions required by law and any additional amounts authorized by you to be withheld.

5.3Other Change of Control Benefits.In addition to any amounts payable under Section 5.2 above, upon the occurrence
of a Change of Control and (i) your employment by the Company terminates for any reason other than for Cause or on account of your permanent disability or death or (ii) there occurs a
Constructive Termination, the vesting of one hundred percent (100%) of the Options shall be immediately exercisable.

5.5Change in Control Definitions.For purposes of this Agreement:



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For
purposes of Sections 5.5(a)(ii) and 5.5(a)(iii) above, any Person who acquired securities of the Company prior to the occurrence of the specified transaction in
contemplation of such transaction and who immediately after such transaction possesses direct or indirect beneficial ownership of at least ten percent (14.5%) of the securities of the Company or the
surviving corporation, as appropriate (or if the Company or the surviving corporation is a controlled affiliate, then of the appropriate Person as determined above), will not be included in the group
of stockholders of the Company immediately prior to such transaction.



VI.Assumption.Prior to or upon consummation of the Change in Control, the Company shall obtain the
assumption of this offer letter by the surviving corporation of any merger, consolidation or other reorganization (if such surviving corporation is not the Company) and the ultimate parent of the
Person engaging in the transaction or transactions constituting a Change in Control.

VII.Intellectual Property Rights/Confidential Information.You agree that the Company is the owner of
valuable trade secrets, client, vendor, customer and contractor lists and other confidential and proprietary information. As such, you agree that your employment is contingent upon your execution of,
and delivery to, the Company of a Confidential Information and Invention Assignment Agreement in the standard form utilized by the Company.

VIII.Non-Competition/Conflicting Employment.You agree that, during the term of your
employment with the Company, you will not engage in any other employment, occupation, consulting or other business activity directly related to the business in which the Company and/or its customers
are now involved or become involved during the term of your employment, nor will you engage in any other activities that conflict with your obligations to the Company.

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IX.Arbitration.

9.1Arbitration Generally.You and the Company expressly agree that, to the extent permitted by law and to the extent that
the enforceability of this Agreement is not thereby impaired, any and all disputes, controversies or claims between you and the Company, including, without limitation, those arising out of or
concerning your employment by the Company or its termination or this Agreement, and including, without limitation, claims by you against directors or employees of the Company, whether arising under
theories of liability or damages based on contract, tort or statute, shall be determined exclusively by final and binding arbitration before a single arbitrator in accordance with the National
Rules For the Resolution of Employment Disputes of the American Arbitration Association, or successor rules then in effect, and that judgment upon the award of the arbitrator may be rendered in any
court of competent jurisdiction. Claims subject to exclusive final and binding arbitration under this Agreement include, without limitation, claims that otherwise could be tried in court to a jury in
the absence of this Agreement. Such claims include, without limitation, statutory claims for employment discrimination based on race, color, national origin, sex, religion, disability, age, harassment
of any type, and other statutory or constitutional claims for employment discrimination; claims for wrongful termination including employment termination in violation of public policy; and claims for
personal injury including, without limitation, defamation, fraud, and infliction of emotional distress. As a material part of this agreement to arbitrate claims, you expressly waive all rights to a
jury trial in court on all statutory or other claims including, without limitation, those identified in this Section X.

9.2Location of Arbitration; Applicable Law.The arbitration shall be held in the Los Angeles, California, and this Agreement
shall be construed according to the substantive law of the State of California as provided in Section IX.

9.3AAA Arbitration.The arbitration shall be administered by the American Arbitration Association, and the arbitrator shall
be selected from a list of arbitrators provided by the American Arbitration Association following a request by the party seeking arbitration for a list of five retired or former jurists with
substantial professional experience in employment matters. The arbitration shall be conducted under the procedures applicable to arbitrations in the state of California. The arbitrator's authority and
jurisdiction shall be limited to determining the dispute in arbitration in conformity with law, to the same extent as if such dispute were determined as to liability and any remedy by a court without
a jury. The arbitrator shall render an award which shall include a written statement of opinion setting forth the arbitrator's findings of fact and conclusions of law.

9.4Costs of Arbitration.The Company or its successor shall pay the costs of arbitration including, without limitation,
attorneys' fees and costs, and fees and costs of any experts except that, if any party prevails on a statutory claim that entitles the prevailing party to a reasonable attorneys' fee (with or without
expert fees) as part of the costs, the arbitrator may award reasonable attorneys' fees (with or without expert fees) to the prevailing party in accord with such statute.

9.5Authority of Arbitrator.Any controversy over whether a dispute is an arbitrable dispute or as to the interpretation or
enforceability of this Section X with respect to such arbitration shall be determined by the arbitrator.

9.6Ongoing Rights and Obligations.You acknowledge that the Company and you have ongoing rights and obligations relating to
intellectual property, confidential information and non-competition with the Company, together with fiduciary rights and obligations, which will survive the termination of your employment.
The Company and you agree that nothing in this Agreement shall waive or otherwise preclude any otherwise available right to temporary restraining orders or other injunctive relief for any breach or
threatened breach of any of these obligations. You understand that injunctive relief may include, but shall not be limited to, restraining continuing breaches of such obligations. Any such
injunctive proceedings shall be without prejudice to any rights the Company or you may have under this Agreement to obtain relief in arbitration with respect to such matters.

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X.General Provisions.

10.1Governing Law.This offer letter will be governed by the laws of the State of California, applicable to agreements made
and to be performed entirely within such state.

10.2Entire Agreement.This offer letter sets forth the entire agreement and understanding between the Company and you
relating your employment and supersedes all prior verbal discussion and written agreements between us. Any subsequent change or changes in your duties, salary or other compensation will not affect the
validity or scope of this agreement. Any change to the at-will term of this agreement must be executed in writing and signed by you and the President of the Company.

10.3Successors/Assigns.This agreement will be binding upon your heirs, executors, administrators and other legal
representatives and will be for the benefit of the Company and its respective successors and assigns.

Please
acknowledge and confirm your acceptance of this letter by signing and returning the enclosed copy of this offer letter. If you have any questions about this offer letter, please
call me directly.

| |  | VALUECLICK, INC.
| |  | ----------------
| |  |                 
| |  | By:             

ACCEPTANCE:

I
accept the terms of my employment with ValueClick, Inc. as set forth herein. I understand that this offer letter does not constitute a contract of employment for any specified
period of time, and that my employment relationship may be terminated by either party, with or without cause and with or without notice.

Mr. Samuel
J. Paisley

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