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  • American Library Association (ALA)   
    • Divisions--
      • Association for Library Collections and Technical Services (ALCTS), now CORE
        • Cataloging and Metadata Management Section (CaMMS)
          • Chair, RDA Implementation Task Force, 2007-2009
          • Research & Publications Committee, member 2019-2021
          • Committee on Education, Training and Recruitment for Cataloging
            • Task Force on Competencies and Education for a Career in Cataloging, Volunteer, 2008-2010
  • American Library and Information Science Education (ALISE)
    • Special Interest Groups
      • Technical Services,
        • Co-Convener, 2022-2023
      • Historical Perspectives
      • Doctoral Students
  • American Society of Information Science & Technology (ASIST)
    • Special Interest Groups
      • Classification Research (CR)
      • Historical Foundations of Information Science (HFIS)
        • Chair 2003-2004
      • ASIST Bulletin, Editorial Board 2004-2011
      • ASIST Representative for Student Chapter Advisors, 2006-2008
  • Cataloging & Classification Quarterly
    • Editorial Board, member 2021-present
  • International Society of Knowledge Organization (ISKO)
    • Programme Committee, member, 10th International Conference, Montreal, June 2008
    • North American ISKO chapter member (NASKO) Programme Committee, member, 3rd North American Symposium on KO, June 2011
  • Journal of Library Metadata
    • Editorial Board, member 2007-present
    • Guest editor, special edition for June 2012
  • Texas Center for Digital Knowledge (TxCDK), Research Fellow
  • Texas Library Association (TLA)
    • Cataloging and Metadata Roundtable (CMR) (formerly TRGCC)
      • Vice Chair/Chair Elect 2003-2004
      • Chair Elect 2004-2005, 2022-
      • TLA Council Representative 2007-2013
    • Publications Committee 2003-2006
      • Vice Chair 2005-2006
    • Transforming Texas Libraries, Visioning Task Force, December 2007-March 2008
  • Library Technology Now
    • Editorial Board, member 2004-2007
    • Thesaurus Review Board, Chair 2003-2007
      • Lead Developer, LTN Thesaurus 2003-2007
  • Metadata Education and Research Information Center (MERIC)
    • Advisory Board, member 2005-2006