AACR2 Anglo American Cataloging Rules, 2 http://www.aacr2.org/
AAT Art and Architecture Thesaurus http://www.getty.edu/research/conducting_research/vocabularies/aat/
ALMAGEST Princeton University Image Management System http://www.princeton.edu/~almagest/opensource/
AMICO Art Museum Image Consortium (now defunct. See CAMIO, etc) http://www.amico.org/
ANSI American National Standards Institute http://www.ansi.org/
APPM Archives, Personal Papers and Manuscripts (precursor to DACS) http://www.archivists.org/catalog/pubDetail.asp?objectID=1279
ARTstor ARTstor Digital Library http://www.artstor.org/info/
ASCII American Standard Code for Information Interchange (ANSI) http://www.ansi.org/
CCO Cataloging of Cultural Objects http://www.vraweb.org/ccoweb/index.html
CDWA Categories for the Description of Works of Art http://www.getty.edu/research/conducting_research/standards/cdwa/index.html
CDWA LITE CDWA XML Schema Content for Contributing Records via OAI Harvesting Protocol (Ver. 0.09) http://www.getty.edu/research/conducting_research/standards/cdwa/cdwalite/index.html
CONTENTdm Digital Collection Management Software by DiMeMa http://www.dimema.com/
CORBIS Visual Image Provider, i.e. Corbis Education Program http://education.corbis.com/default.aspx?linkid=15000
CORE 4.0 VRA Core Categories Version 4.0 (Beta Site) http://www.vraweb.org/datastandards/VRA_Core4_Welcome.html
CUMULUS Digital Asset Management System produced by Canto. http://www.canto.com/
DACS Describing Archives: a Content Standard http://www.archivists.org/catalog/pubDetail.asp?objectID=1279
DAMS Digital Asset Management System 
DLF Digital Library Federation http://www.diglib.org/
DSPACE Opensource digital repository system  http://dspace.org/introduction/index.html
DTD Document Type Definition
DUBLIN CORE Dublin Core Metadata Initiative http://dublincore.org/
EAD Encoded Archival Description http://www.loc.gov/ead/
Fedora Flexible and Extensible Digital Object and Repository Architecture http://www.fedora.info/
FMP Filemaker Pro http://www.filemaker.com/
FRBR Functional Requirements for Bibliographic Records http://www.ifla.org/VII/s13/frbr/frbr.htm
FTP File Transfer Protocol http://www.w3.org/Protocols/rfc959/Overview.html
GIGO Garbage In-Garbage Out
HTML Hypertext Markup Language http://www.w3.org/MarkUp/
HTTP Hypertext Transfer Protocol http://www.w3.org/Protocols/
ICONCLASS International subject classification system for iconographic research & documentation of images http://www.iconclass.nl/index.html
IPR Intellectual Property Rights
IRIS Image Resource Information System Consortia. (Filemaker) http://inside.bard.edu/~bauman/iris/index.htm
ISBD International Standard Bibliographic Description for Electronic Resources http://www.ifla.org/VII/s13/pubs/isbd.htm
LCNAF Library of Congress Name Authority File http://authorities.loc.gov/ 
LCSH Library of Congress Subject Headings http://authorities.loc.gov/
LCTGM Library of Congress Thesaurus for Graphic Materials http://authorities.loc.gov/
LUNA Insight Digital Asset Management System produced by LUNA http://www.luna-imaging.com/insight/index.html
MARC Machine Readable Cataloging http://lcweb.loc.gov/marc/
MARCXML Schema for working with MARC data in a XML environment. http://www.loc.gov/standards/marcxml/
MDID Madison Digital Image Database http://mdid.org/demo/
METS Metadata Encoding Transmission Standard http://www.loc.gov/standards/mets/
MrSID Multi-Resolution Seamless Image Database http://www.lizardtech.com/support/faq/general_mrsid.php
MODS Metadata Object Description Standard http://www.loc.gov/standards/mods/
MySQL Open Source high-performance database system http://www.mysql.com/
NISO National Information Standards Organization http://www.niso.org/
NOMENCLATURE Revised Nomenclature for Museum Cataloging: Revised Chenhall System for Classifying Objects http://www.chin.gc.ca/English/Standards/vocabulary_classification.html
NSDL National Science Digital Library http://nsdl.org/
OAI Open Archive Initiative http://www.openarchives.org/
OAI/PMH Open Archive Initiative Protocol for Metadata Harvesting http://www.openarchives.org/OAI/openarchivesprotocol.html
ODBC Open Database Connectivity http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore98/HTML/_core_odbc.asp
OCLC Online Computer Library Center http://www.oclc.org/
OIV Offline Image Viewer (ARTstor) http://www.artstor.org/info/
OPAC Online Public Access Catalog
PDF Portable Document Format
PHP Open Source Scripting Language http://www.php.net/
PICTOR Princeton/Cornell Image Cataloging Database System (Access)
PPT Microsoft Powerpoint Presentation
RDA Resource Description and Access
RLG Research Libraries Group http://www.rlg.org/
RLIN Research Libraries Information Network http://www.rlg.org/en/page.php?Page_ID=643
RSS / RSS FEED RDF Site Summary or Rich Site Summary newsfeed
SCHOLARS RESOURCE Consortium of Commercial Digital Image Providers http://www.scholarsresource.com/
SOAP Simple Object Access Protocol http://www.w3.org/TR/soap/
SQL Structured Query Language
SAA Society of American Archivists http://www.archivists.org/
TCP/IP Transmission Control Protocol/ Internet Protocol http://www.iso.ch/ISO/en/ISOOnline.frontpage
TEI Text Encoding Initiative http://www.tei-c.org/
TGN Thesaurus of Geographic Names http://www.getty.edu/research/conducting_research/vocabularies/tgn/
TMS The Museum System. Museum Relational Database Produced by Gallery Systems http://www.gallerysystems.com/products/tms.html
ULAN Union List of Artist Names http://www.getty.edu/research/conducting_research/vocabularies/ulan/
VIREOCAT Visual Resources Open Cataloging Utility (Freeware, created by Susan Jane Williams) http://humanities.uchicago.edu/depts/art/visual_resources/vireocat.shtml
VRMS Visual Resources Management System (precursor to IRIS, etc.)
XML Extensible Markup Language http://www.w3.org/XML/
XSD XML Schema Definition http://searchwebservices.techtarget.com/sDefinition/0,,sid26_gci831325,00.html
Z39.50 Protocol  ISO 23950: "Information Retrieval (Z39.50): Application Service Definition, ANSI/NISO Z39.50. http://www.loc.gov/z3950/agency/