<SUBMISSION>
<ACCESSION-NUMBER>0000914190-08-000048
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080102
<FILING-DATE>20080110
<DATE-OF-FILING-DATE-CHANGE>20080110
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>uBid.com Holdings, Inc.
<CIK>0001219097
<ASSIGNED-SIC>5961
<IRS-NUMBER>522372260
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>8550 WEST BRYN MAWR
<STREET2>SUITE 200
<CITY>CHICAGO
<STATE>IL
<ZIP>60631
<PHONE>(773) 272-5000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>8550 WEST BRYN MAWR
<STREET2>SUITE 200
<CITY>CHICAGO
<STATE>IL
<ZIP>60631
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>CAPE COASTAL TRADING CORP
<DATE-CHANGED>20030219
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Olsen Lee Thomas
<CIK>0001423532
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-50995
<FILM-NUMBER>08523735
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>678-366-9997
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>13800 HWY 9
<STREET2>SUITE D-119
<CITY>ALPHARETTA
<STATE>GA
<ZIP>30004
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-01-02</periodOfReport>

    <issuer>
        <issuerCik>0001219097</issuerCik>
        <issuerName>uBid.com Holdings, Inc.</issuerName>
        <issuerTradingSymbol>UBHI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001423532</rptOwnerCik>
            <rptOwnerName>Olsen Lee Thomas</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>13800 HIGHWAY 9, SUITE D-119</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ALPHARETTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.80</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-01-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>200000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-01-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>200000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>200000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option vests in four installments of 50,000 shares beginning on January 2, 2009.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John R. Remakel as Attorney-in-Fact for Lee T. Olsen pursuant to Power of Attorney previously filed</signatureName>
        <signatureDate>2008-01-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
