<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-05-14T08:01:52-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>560587953</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>GILLIAM BELL MOSER LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>301 N ELM ST SUITE 400</AddressLine1Txt>
        <CityNm>GREENSBORO</CityNm>
        <StateAbbreviationCd>NC</StateAbbreviationCd>
        <ZIPCd>27401</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>814396672</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>OPEN LIBRARY FOUNDATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>OPEN</BusinessNameControlTxt>
      <PhoneNum>7178717030</PhoneNum>
      <USAddress>
        <AddressLine1Txt>701 CATHEDRAL ROAD SUITE 45-253</AddressLine1Txt>
        <CityNm>PHILADELPHIA</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>19128</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>SCOTT ANDERSON</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>7178717030</PhoneNum>
      <SignatureDt>2024-05-14</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>SCOTT</PersonFirstNm>
        <PersonLastNm>ANDERSON</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>J BRADLEY MOSER</PreparerPersonNm>
      <PTIN>P00024209</PTIN>
      <PhoneNum>3362300350</PhoneNum>
      <PreparationDt>2024-05-06</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>TOM CRAMER</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>701 CATHEDRAL ROAD SUITE 45-253</AddressLine1Txt>
        <CityNm>PHILADELPHIA</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>19128</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>822154</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>HTTPS://OPENLIBRARYFOUNDATION.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2016</FormationYr>
      <LegalDomicileStateCd>DE</LegalDomicileStateCd>
      <ActivityOrMissionDesc>THE FOUNDATION SEEKS TO ENABLE AND SUPPORT COLLABORATION AMOUNG LIBRARIANS, TECHNOLOGISTS, DESIGNERS, SERVICE PROVIDERS AND VENDORS TO SHARE EXPERTISE AND RESOURCES AND TO CREATE INNOVATIVE NEW SOFTWARE AND RESOURCES THAT SUPPORT LIBRARIES.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>7</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>7</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalVolunteersCnt>20</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>179987</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>757609</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>9850</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>61884</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>12</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>38</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>2623</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>189849</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>822154</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>0</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>448749</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>590174</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>448749</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>590174</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-258900</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>231980</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>372297</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>691583</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>23267</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>110573</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>349030</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>581010</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>THE FOUNDATION SEEKS TO ENABLE AND SUPPORT COLLABORATION AMOUNG LIBRARIANS, TECHNOLOGISTS, DESIGNERS, SERVICE PROVIDERS AND VENDORS TO SHARE EXPERTISE AND RESOURCES AND TO CREATE INNOVATIVE NEW SOFTWARE AND RESOURCES THAT SUPPORT LIBRARIES.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>430336</ExpenseAmt>
      <Desc>FOLIO : FOLIO IS A COLLABORATION OF LIBRARIES, DEVELOPERS AND VENDORS BUILDING AN OPEN SOURCE LIBRARY SERVICES PLATFORM. IT SUPPORTS TRADITIONAL RESOURCE MANAGEMENT FUNCTIONALITY AND CAN BE EXTENDED INTO OTHER INSTITUTIONAL AREAS. FOLIO INSTITUTED A MEMBERSHIP MODEL IN FY22, ATTRACTING 32 PAID INSTITUTIONAL MEMBERS IN ITS FIRST YEAR, FOR TOTAL MEMBER CONTRIBUTIONS OF $295,000. A DOZEN INSTITUTIONS IMPLEMENTED FOLIO IN THIS TIME PERIOD, BRINGING THE TOTAL TO NEARLY 50 ACROSS THE WORLD IN EUROPE, NORTH AND SOUTH AMERICA, AND ASIA. THREE MAJOR RELEASES WERE COMPLETED. ELECTIONS FOR FY23 FOR THE COMMUNITY, PRODUCT, AND TECHNICAL COUNCILS WERE SUCCESSFULLY CARRIED OUT.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>114492</ExpenseAmt>
        <RevenueAmt>61884</RevenueAmt>
        <Desc>WOLFCON : WOLFCON 2023 MEETING OCCURRED IN HAMBURG, GERMANY, IN SEPTEMBER 2022.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>59</ExpenseAmt>
        <Desc>VUFIND : ONE MAJOR AND ONE MINOR RELEASE WERE COMPLETED. A VIRTUAL USER AND DEVELOPER SUMMIT WAS HELD ONLINE IN SEPTEMBER, 2022. A REGISTERED SERVICE PROVIDER PROGRAM WAS ESTABLISHED, AND FIVE ORGANIZATIONS BECAME PROJECT SUPPORTERS DURING THE YEAR.</Desc>
      </ProgSrvcAccomActy3Grp>
      <TotalProgramServiceExpensesAmt>544887</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd>0</DonorAdvisedFundInd>
      <ConservationEasementsInd>0</ConservationEasementsInd>
      <CollectionsOfArtInd>0</CollectionsOfArtInd>
      <CreditCounselingInd>0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd>0</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd>0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd>0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd>0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd>0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd>0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd>0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd>0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="RetDoc1043400001">1</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="RetDoc1043400001">0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="RetDoc1043400001">0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>2</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>7</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>7</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>0</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>0</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>1</InvestmentInJointVentureInd>
      <WrittenPolicyOrProcedureInd>0</WrittenPolicyOrProcedureInd>
      <OwnWebsiteInd>X</OwnWebsiteInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>SCOTT ANDERSON</PersonNm>
        <PhoneNum>7178717030</PhoneNum>
        <USAddress>
          <AddressLine1Txt>701 CATHEDRAL ROAD SUITE 45-253</AddressLine1Txt>
          <CityNm>PHILADELPHIA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>191282111</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>TOM CRAMER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SCOTT ANDERSON</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTOPHER SPAULDING</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SAM BROOKS</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AGNESE GALEFFI</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRIS KEENE</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NANCY KIRKPATRICK</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHANIE BUCK</PersonNm>
        <TitleTxt>ASST. SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAULA SULLENGER</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LIU WEI</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>379562</MembershipDuesAmt>
      <AllOtherContributionsAmt>378047</AllOtherContributionsAmt>
      <TotalContributionsAmt>757609</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>PROGRAM SERVICE REVENU</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>61884</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>61884</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>61884</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>38</TotalRevenueColumnAmt>
        <ExclusionAmt>38</ExclusionAmt>
      </InvestmentIncomeGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>2623</TotalRevenueColumnAmt>
        <ExclusionAmt>2623</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>2623</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>822154</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>61884</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2661</ExclusionAmt>
      </TotalRevenueGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>2799</TotalAmt>
        <ProgramServicesAmt>2099</ProgramServicesAmt>
        <ManagementAndGeneralAmt>700</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>19936</TotalAmt>
        <ProgramServicesAmt>14952</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4984</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>22960</TotalAmt>
        <ProgramServicesAmt>22960</ProgramServicesAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>925</TotalAmt>
        <ManagementAndGeneralAmt>925</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>296555</TotalAmt>
        <ProgramServicesAmt>266900</ProgramServicesAmt>
        <ManagementAndGeneralAmt>29655</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <TravelGrp>
        <TotalAmt>2250</TotalAmt>
        <ProgramServicesAmt>2250</ProgramServicesAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>90233</TotalAmt>
        <ProgramServicesAmt>81210</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9023</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <OtherExpensesGrp>
        <Desc>AGENCY PAYMENTS FOR MEM</Desc>
        <TotalAmt>146666</TotalAmt>
        <ProgramServicesAmt>146666</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PROGRAM FEES</Desc>
        <TotalAmt>4850</TotalAmt>
        <ProgramServicesAmt>4850</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BAD DEBT EXPENSE</Desc>
        <TotalAmt>3000</TotalAmt>
        <ProgramServicesAmt>3000</ProgramServicesAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>590174</TotalAmt>
        <ProgramServicesAmt>544887</ProgramServicesAmt>
        <ManagementAndGeneralAmt>45287</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>189126</BOYAmt>
        <EOYAmt>426646</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>114597</BOYAmt>
        <EOYAmt>74625</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>44800</BOYAmt>
        <EOYAmt>92750</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>23774</BOYAmt>
        <EOYAmt>97562</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <TotalAssetsGrp>
        <BOYAmt>372297</BOYAmt>
        <EOYAmt>691583</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <EOYAmt>77313</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>23267</BOYAmt>
        <EOYAmt>33260</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>23267</BOYAmt>
        <EOYAmt>110573</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>277480</BOYAmt>
        <EOYAmt>260260</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>71550</BOYAmt>
        <EOYAmt>320750</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>349030</BOYAmt>
        <EOYAmt>581010</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>372297</BOYAmt>
        <EOYAmt>691583</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>231980</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>1</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </AcctCompileOrReviewBasisGrp>
      <FSAuditedInd>0</FSAuditedInd>
      <AuditCommitteeInd>0</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1282838</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>837442</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>670419</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>179987</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>757609</CurrentTaxYearAmt>
        <TotalAmt>3728295</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>1282838</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>837442</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>670419</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>179987</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>757609</CurrentTaxYearAmt>
        <TotalAmt>3728295</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>1137428</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>2590867</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>2303</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>564</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>12</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>38</CurrentTaxYearAmt>
        <TotalAmt>2917</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>8002</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearAmt>2623</CurrentTaxYearAmt>
        <TotalAmt>10625</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>3741837</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>164623</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.69240</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.72520</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MEETING REVENUE - 2018 AMOUNT: $ 8,002. MISCELLANEOUS INCOME - 2022 AMOUNT: $ 2,623.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRIOR YEAR WAS A SHORT YEAR DUE TO A CHANGE IN ACCOUNTING PERIOD, RUNNING FROM JANUARY 1-JUNE 30, 2020. AS SUCH, EACH RETURN IS SHIFTED A YEAR TO THE LEFT: 2018 = FYE 2019.12.31 2019 = SHORT YEAR - 01.01-06.30.2020 2020 = FYE 06.30.2021 2021 = FYE 06.30.2022 2022 = CURRENT YEAR - FYE 06.30.2023</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 DRAFT WILL BE DISTRIBUTED TO ALL BOARD MEMBERS FOR REVIEW PRIOR TO FILING. SINCE OLF FOLIO SMLLC AND OLF VUFIND SMLLC DO NOT FILE A SEPARATE 990, THIS DOES NOT APPLY TO THEM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SECRETARY MAKES AN ANNUAL CALL FOR UPDATED DOCUMENT AND QUARTERLY REMINDERS. AT THIS TIME, OLF FOLIO SMLLC DOES NOT HAVE A CONFLICT OF INTEREST POLICY IN PLACE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC ON ITS WEBSITE OR UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>OLF FOLIO SMLLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>701 CATHEDRAL ROAD STE 45-253</AddressLine1Txt>
          <CityNm>PHILDELPHIA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>191282111</ZIPCd>
        </USAddress>
        <EIN>814396672</EIN>
        <PrimaryActivitiesTxt>DEVELOPMENT OF OPEN SOURCE LIBRARY SERVIES SOFTWARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <TotalIncomeAmt>691500</TotalIncomeAmt>
        <EndOfYearAssetsAmt>406354</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>OPEN LIBRARY FOUNDATION INC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>OLF VUFIND SMLLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>701 CATHEDRAL ROAD STE 45-253</AddressLine1Txt>
          <CityNm>PHILDELPHIA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>191282111</ZIPCd>
        </USAddress>
        <EIN>814396672</EIN>
        <PrimaryActivitiesTxt>LIBRARY RESOURCE PORTAL SOFTWARE FOR LIBRARIES TO AGGREGATE RESOURCES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <TotalIncomeAmt>7062</TotalIncomeAmt>
        <EndOfYearAssetsAmt>8503</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>OPEN LIBRARY FOUNDATION INC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
