<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-08-02</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000914712</issuerCik>
        <issuerName>CMGI INC</issuerName>
        <issuerTradingSymbol>CMGI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001106607</rptOwnerCik>
            <rptOwnerName>JP MORGAN PARTNERS BHCA LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>J.P. MORGAN PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1221 AVENUE OF THE AMERICAS 40TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001243235</rptOwnerCik>
            <rptOwnerName>JPMP MASTER FUND MANAGER L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>JP MORGAN PARTNERS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>1221 AVENUE OF THE AMERICAS 40TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001243236</rptOwnerCik>
            <rptOwnerName>JPMP CAPITAL CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O J.P. MORGAN PARTNERS, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>1221 AVENUE OF THE AMERICAS 40TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000019617</rptOwnerCik>
            <rptOwnerName>J P MORGAN CHASE &amp; CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>270 PARK AVE</rptOwnerStreet1>
            <rptOwnerStreet2>39TH FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, .01 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5999666</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Reporting Person is a party to a certain Stock Transfer Agreement dated as of March 23, 2004 and a certain Stock Selling
Agreement dated as of August 2, 2004 (collectively, the &quot;Selling Stockholder Agreements&quot;). As a result thereof, the
Reporting Person and the other parties to the Selling Stockholder Agreements may be deemed to constitute a &quot;group&quot; for
purposes of Section 13(d)(3) of the Securities Exchange Act of 1932, as amended (the &quot;Act&quot;) with respect to 62,521,577
shares of the Issuer's Common Stock representing 13.2% of the Issuer's Common Stock outstanding as of August 2, 2004.
(Footnote continued under &quot;Remarks&quot;)</footnote>
    </footnotes>

    <remarks>The Reporting Person disclaims beneficial ownership of any securities held by any other party to the Selling Stockholder
Agreements and the filing of this Form 3 shall not be deemed an admission that the Reporting Person or any other person or
persons party to the Selling Shareholders Agreements constitute a &quot;group&quot; for purposes of Section 13(d)(3) of the At or Rule
13d-5 thereunder.

See Exhibit 99.1</remarks>

    <ownerSignature>
        <signatureName>J.P. Morgan Partners By: JPMP Master Fund Manager, L.P., as general partner By: JPMP Capital Corp., as general partner By: Thomas Szymoniak, Vice President and Assistant Secretary</signatureName>
        <signatureDate>2004-08-04</signatureDate>
    </ownerSignature>
</ownershipDocument>

