Document:

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                                                                    EXHIBIT 10.4

                                     RELEASE

      This Release is being executed and delivered in accordance with Section
3.3.2(g) of the Agreement and Plan of Merger by and among Harris Interactive
Inc., Wirthlin Worldwide, Inc., Capitol Merger Sub, LLC, and the Stockholders of
Wirthlin Worldwide, Inc. dated as of September 8, 2004 (the "Agreement").
Capitalized terms used in this Release without definition have the respective
meanings given to them in the Agreement.

      Each Stockholder acknowledges that the execution and delivery of this
Release is a condition to Harris's obligation to purchase the outstanding
capital stock of Wirthlin pursuant to the Agreement and that Harris is relying
on this Release in consummating such purchase.

      Each Stockholder, for good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged and intending to be legally bound,
in order to induce Harris to purchase the outstanding capital stock of Wirthlin
pursuant to the Agreement, hereby agrees as follows:

      Each Stockholder, on behalf of itself or himself and each of his Related
Persons, hereby releases and forever discharges each of the Acquired Companies,
and each of their respective individual, joint or mutual, past and present
Representatives, affiliates, stockholders, controlling Persons, Subsidiaries,
successors and assigns (individually, a "Releasee" and collectively,
"Releasees") from any and all claims, demands, Proceedings, causes of action,
Orders, obligations, contracts, agreements debts and liabilities whatsoever,
whether known or unknown, suspected or unsuspected, both at law and in equity,
which each of the Stockholders or any of their respective Related Persons now
has, have ever had or may hereafter have against the respective Releasees
arising contemporaneously with or prior to the Closing Date or on account of or
arising out of any matter, cause or event occurring contemporaneously with or
prior to the Closing Date, including but not limited to any rights to
indemnification or reimbursement from any Acquired Company, whether pursuant to
their respective Organizational Documents, contract or otherwise and whether or
not relating to claims pending on, or asserted after, the Closing Date;
provided, however, that nothing contained herein shall operate to release any
obligations of (a) any Releasees arising under the Agreement or the Ancillary
Agreements or (b) any obligation of Wirthlin under (i) the Agreement between
Wirthlin and Wirthlin Family LLC dated April 23, 2002, as may be amended, and
(ii) the Agreement between Wirthlin and WB&H Investments, L.P., dated September
15, 1985, as amended, or (c) Harris and any Releasees with respect to any rights
to salary, bonus, and benefits under employee benefit plans (but for the
avoidance of doubt, specifically not including plans related to equity
securities or rights related to the equity value of the Acquired Companies) that
have accrued to each Stockholder on account of their status as an employee of an
Acquired Company.

      Each Stockholder hereby irrevocably covenants to refrain from, directly or
indirectly asserting any claim or demand, or commencing, instituting or causing
to be commenced, any proceeding of any kind against any Releasee, based upon any
matter purported to be released hereby.

      Without in any way limiting any of the rights and remedies otherwise
available to any Releasee, each Stockholder shall indemnify and hold harmless
each Releasee from and against

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all loss, liability, claim, damage (including incidental and consequential
damages) or expense (including costs of investigation and defense and reasonable
attorney's fees) whether or not involving third party claims, arising directly
or indirectly from or in connection with (i) the assertion by or on behalf of
the Stockholders or any of their Related Persons of any claim or other matter
purported to be released pursuant to this Release and (ii) the assertion by any
third party of any clam or demand against any Releasee which claim or demand
arises directly or indirectly form, or in connection with, any assertion by or
on behalf of the Stockholders or any of their Related Persons against such third
party of any claims or other matters purported to be released pursuant to this
Release.

      If any provision of this Release is held invalid or unenforceable by any
court of competent jurisdiction, the other provisions of this Release will
remain in full force and effect. Any provision of this Release held invalid or
unenforceable only in part or degree will remain in full force and effect to the
extent no held invalid or unenforceable.

      This Release may not be changed except in a writing by the Person(s)
against whose interest such change shall operate.

      This Release shall be governed by and construed under the laws of the
State of Delaware without regard to principles of conflicts of law.

      All words used in this Release will be construed to be of such gender or
number as the circumstances require.

      IN WITNESS WHEREOF, each of the undersigned have executed and delivered
this Release as of this 8th day of September, 2004.

                            [Signature Pages Follow]

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         This Release was signed by the following Stockholders of Wirthlin
Worldwide, Inc. (individual signature pages have been omitted):

                              Wirthlin Family Trust
                              White Family Living Trust
                              David Richardson
                              Dorothy Peterson
                              John Kennedy
                              James Hoskins
                              Hakan Atak
                              Dee Allsop

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                                                                    Exhibit 10.5

                 CONSENT, WAIVER AND AMENDMENT TO LOAN AGREEMENT

         THIS CONSENT, WAIVER AND AMENDMENT TO LOAN AGREEMENT (the "Consent")
dated as of the 7th day of September, 2004, by and between WIRTHLIN WORLDWIDE,
INC., a California corporation, formerly known as DECIMA RESEARCH(the
"Borrower"), and SUNTRUST BANK, a Georgia banking corporation (the "Bank"),
recites and provides:

                                    RECITALS

         The Bank extends credit to the Borrower pursuant to the terms of the
letter agreement, dated as of February 6, 2002, between the Borrower, the
Guarantors and the Bank, as amended by a letter agreement dated May 20, 2004
(the "Loan Agreement"). Terms defined in the Loan Agreement shall have the same
defined meanings when such terms are used in this Consent.

         The Borrower, its shareholders and Harris Interactive, Inc. (the
"Purchaser") have entered into an agreement pursuant to which the Purchaser,
directly or indirectly, will acquire all of the outstanding capital stock of the
Borrower (the "Acquisition"). Prior to the consummation of the Acquisition, the
Borrower proposes to pay a dividend of up to $7,000,000 to its shareholders (the
"Dividend Payment").

         The Borrower has requested that the Bank and the Bank consent to the
foregoing transactions and waive any Default or Event of Default that might
otherwise result from the consummation of such transactions. The Borrower also
has requested that the Bank extend the Termination Date of the Guidance Line.
The Bank has agreed to such consent, waiver and extension, subject to the terms
and conditions of this Consent. Accordingly, for valuable consideration, the
receipt and sufficiency of which are acknowledged, the Borrower and the Bank
agree as follows:

                                   AGREEMENT

1. Incorporation of Recitals. The foregoing recitals to this Consent are
incorporated in and made a part of this Consent to the same extent and the same
effect as if fully set forth herein.

2. Consent. Subject to the terms and conditions of this Consent, the Bank hereby
consents to the Acquisition and the Dividend Payment (the "Approved
Transactions").

3. Waiver. Subject to the terms and conditions of this Consent, the Bank waives
its right to declare a Default or an Event of Default by reason of the
consummation of the Approved Transactions.

4. Release of Stock. The Bank agrees that the Indebtedness shall no longer be
secured by the stock, membership interests and other ownership interests of
Subsidiaries of the Borrower and hereby agrees to release such security interest
and return to the Borrower all stock certificates and other certificates
currently held by the Bank.

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5. Amendment. Subject to the terms and conditions of this Consent, the Borrower
and the Bank agree that the Loan Agreement is amended as follows:

         (a) The definitions of the Acquisition and the Dividend Payment set
forth in the Recitals to this Consent are incorporated by reference in Schedule
of Definitions attached to the Loan Agreement.

         (b) Section 2(a) of the Loan Agreement are amended to read as follows:

                  "(a) Amount. The aggregate principal amount of Advances under
                  the Guidance Line outstanding at any time shall not exceed
                  $1,500,000. The Advances shall be made in the sole and
                  absolute discretion of the Bank, and the Bank shall have no
                  obligation to make Advances even if the Borrower is in
                  compliance with all of the terms of the Loan Documents.
                  Advances made on any one or more occasions shall not obligate
                  the Bank to make Advances on any subsequent occasion. The
                  Guidance Line will mature on June 30, 2005 (the "Termination
                  Date").

         (c) Section 2(b) of the Loan Agreement is amended to read as follows:

                  "(b) Use of Proceeds. The proceeds of Advances shall be used
                  to fund the Dividend Payment and pay current operating
                  expenses, carry accounts receivable and for other short-term
                  working capital needs of the Borrower."

         (d) Section 3(b) of the Loan Agreement is amended to read as follows:

                  "(b) The Advances and the Term Loan may be prepaid in whole or
                  in part, at any time, without premium or penalty. Partial
                  prepayments of the Term Loan shall be applied to installments
                  due under the Term Note in the inverse order of maturity and
                  may not be reborrowed; provided that the Borrower may elect to
                  have all or a portion of such payment applied to satisfy the
                  installment that is due on the first day of the calendar month
                  following the date of such voluntary prepayment."

         (e) Section 4(a) of the Loan Agreement is amended to read as follows:

                  "(a) Guaranty. The Indebtedness shall be guaranteed, jointly
                  and severally, by Richard B. Wirthlin and The Wirthlin Family
                  Trust (the "Guarantors"), in accordance with the terms of a
                  Guaranty.

         (f) The following is added to the end of Section 4 of the Loan
Agreement as paragraph (d) of such Section 4:

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                  "(d) Pledge Agreement. The Indebtedness shall be secured by an
                  assignment of deposit account and control agreement, or an
                  investment property security agreement and control agreement,
                  in each case, on the Bank's standard form, from The Wirthlin
                  Family Trust (the "Pledgor") in favor of the Bank (as amended,
                  modified or supplemented from time to time, the "Pledge
                  Agreement"), and assigning to the Bank a deposit account in
                  the amount of $3,700,000, or a security account with
                  securities acceptable to the Bank with a margin value (as
                  determined by the Bank) of not less than $3,700,000 (the
                  "Pledged Collateral") maintained by the Pledgor with the
                  Bank."

         (g) Section 7(a) of the Loan Agreement is amended to read as follows:

                  "(a) Financial Reporting Requirements. The Borrower, and, with
                  respect to item (3) below, the Guarantors, shall deliver, to
                  the Bank (1) within 180 days after the close of each fiscal
                  year of the Borrower, audited financial statements of the
                  Borrower and its Subsidiaries, prepared in accordance with
                  GAAP, including consolidated balance sheets, income
                  statements, statements of stockholders' equity and of cash
                  flows, and accompanied by an unqualified opinion of an
                  independent certified public accounting firm reasonably
                  acceptable to the Bank; (2) within 60 days after the end of
                  each fiscal quarter, unaudited financial statements of the
                  Borrower and its Subsidiaries, including consolidated balance
                  sheets and income statements, prepared in accordance with
                  GAAP, (3) within 270 days after the end of each calendar year,
                  the financial statement of The Wirthlin Family Trust, a
                  grantor trust of Richard B. and Jeralie C. Wirthlin, and the
                  personal financial statement of Richard B. Wirthlin, each as
                  of the end of such calendar year; (4) promptly upon receipt,
                  copies of any reports submitted to the Borrower by independent
                  certified public accountants in connection with examination of
                  the financial statements of the Borrower made by such
                  accountants; and (5) such other information concerning the
                  Collateral or the financial condition of the Borrower or any
                  Subsidiary as the Bank from time to time may reasonably
                  request. All financial statements and reports shall be in form
                  and detail reasonably acceptable to the Bank and shall be
                  certified to be accurate by a duly authorized officer of the
                  Borrower to the best of such officer's knowledge."

         (h) Section 7(h) of the Loan Agreement is deleted.

         (i) Section 7(j) of the Loan Agreement is deleted.

6. Conditions to Effectiveness of this Consent. This Consent shall be effective
as of the date first above written (the "Effective Date"), provided the Bank
shall have received a

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counterpart of this Consent, duly executed by the Borrower and all of the
Guarantors, and the following conditions are satisfied:

         (a) Before and after giving effect to this Consent, the representations
and warranties of the Borrower and the Guarantors in the Loan Documents shall be
true and correct as though made on the date hereof, except to the extent such
representations and warranties by their terms are made as of a specific date and
except for changes that are permitted by the terms of the Loan Documents.

         (b) Before and after giving effect to this Consent, no Event of Default
and no Default shall have occurred and be continuing.

         (c) No material adverse change in the business, assets, financial
condition or prospects of the Borrower or any Guarantor shall have occurred.

         (d) The Bank shall have received the Pledged Collateral and fully
executed counterparts of the Pledge Agreement and the Guaranty from Richard B.
Wirthlin and The Wirthlin Family Trust.

         (e) The Borrower shall have paid to the Bank, in consideration of this
Consent, a fee of 0.25% of the sum of $1,500,000 (the maximum amount of the
Guidance Line) plus the outstanding principal balance of the Term Loan on the
Effective Date.

         (f) The Borrower shall have paid to the Bank all costs and expenses
incurred by the Bank in connection with this Consent, including the fees and
expenses of its counsel.

7. No Implied Waivers. The Borrower and the Guarantors acknowledge and agree
that this Consent shall not constitute a waiver, express or implied, of any
other Default, Event of Default, covenant, term or provision of any Loan
Document, nor shall it create any obligation, express or implied, on the part of
the Bank to waive, or to consent to any amendment of, any existing or future
Default, Event of Default or violation of any covenant, term or provision of any
Loan Document. The Bank shall be entitled to require strict compliance by the
Borrower and the Guarantors with the Loan Documents, notwithstanding the
limited, express consent, waiver and amendment contained herein, and nothing
herein shall be deemed to establish a course of action or a course of dealing
with respect to requests by the Borrower or any Guarantor for waivers or
amendments of any Default, Event of Default, covenant, term or provision of any
Loan Document.

8. Successors and Assigns. This Consent shall bind and inure to the benefit of
the parties hereto and their respective successors and assigns.

9. Counterparts. This Consent may be executed by the parties in any combination,
in one or more counterparts, all of which together shall constitute but one and
the same instrument.

10. Governing Law. This Consent and all other instruments referred to herein
shall be governed by, and shall be construed according to, the laws of the
Commonwealth of Virginia.

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11. Representations. The Borrower hereby confirms all of its representations and
warranties made in the Loan Agreement and represents and warrants to the Bank
that such representations and warranties are true as of the date of this
Consent, and, after giving effect to this Consent, no Default or Event of
Default has occurred and is continuing.

12. Ratification. Except for the amendments to the Loan Agreement contained
herein, the terms of the Loan Agreement and the other Loan Documents shall
remain in full force and effect and are ratified and affirmed by the Borrower
and the Guarantors.

                         [SIGNATURES ON FOLLOWING PAGES]

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WITNESS the following signatures.

                                           SUNTRUST BANK

                                           By: /s/ Mark E. Wright
                                              ----------------------------------
                                                     Mark E. Wright
                                                     Senior Vice President

                                           WIRTHLIN WORLDWIDE, INC.

                                           By: /s/ Joel A. White
                                              ----------------------------------
                                           Name:   Joel A. White
                                                --------------------------------
                                           Title:  Chief Financial Officer
                                                 -------------------------------

The undersigned Guarantors hereby acknowledge the foregoing provisions and agree
to be bound thereby.

                                           THE WIRTHLIN FAMILY TRUST

                                           By: /s/ Richard B. Wirthlin
                                              ----------------------------------
                                                     Richard B. Wirthlin
                                                     Trustee

                                               /s/ Richard B. Wirthlin
                                              ----------------------------------
                                                     Richard B. Wirthlin

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