originally: http://www.oclc.org/research/reference/acronyms/default.htm
AAAS
American Association for the Advancement of Science
http://www.aaas.org/
AACR
Anglo-American Cataloguing Rules
AACR2
Anglo-American Cataloguing Rules, 2nd ed.
AALL
American Association of Law Libraries
http://www.aallnet.org/
ACCUL
Advisory Committee on College and University Libraries (OCLC)
http://www.oclc.org/membership/advisorycommittees/
ACE
Advanced Collections Environment
http://staff.oclc.org/~hickey/Ace/
ACIG
Authority Control in the Online Environment Interest Group
http://www.ala.org/ala/lita/litamembership/litaigs/authorityalcts/authoritycontrol.htm
ACM
Association for Computing Machinery
http://www.acm.org/
ACM SIGCHI
Association for Computing Machinery Special Interest Group on Computer-Human Interaction
http://www.acm.org/sigchi/
ACRL
Association of College and Research Libraries
http://www.ala.org/acrl/
ADAPT
Automated Document Analysis Processing and Tagging
ADL
Advanced Distributed Learning
AgNIC
Agriculture Network Information Center
AHEC
Area Health Education Center
ALA
American Library Association
http://www.ala.org/
ALCME
Advanced Library Collection Management Environment
http://alcme.oclc.org/
ALCTS
Association for Library Collections and Technical Services
http://www.ala.org/alcts/
ALISE
Association for Library and Information Science Education
http://www.alise.org/
ANSI
American National Standards Institute
http://www.ansi.org/
API
Application Programming Interface
ACRL
Association of College and Research Libraries
http://www.ala.org/acrl/
ARL
Association of Research Libraries
http://www.arl.org/
ARLIS
Art Libraries Society of North America
http://www.arlisna.org/
ARLIS/NA
Alaska Resources Library and Information Services/North America
http://www.arlis.org/
ASIDIC
Association of Information and Dissemination Centers
http://www.asidic.org/
ASIS
American Society for Information Science
(Changed name to American Society for Information Science and Technology in 2000.)
http://www.asis.org/
ASIST
American Society for Information Science and Technology
(Prior to 2000, known as American Society for Information Science.)
http://www.asis.org/
ASP
Application Service Provider
AUUG
Australian UNIX and Open Systems User Group
http://www.auug.org.au/
BCR
Bibliographical Center for Research
http://www.bcr.org/
CAPSCA
Union List of Periodicals for Central America
CARL
Canadian Association of Research Libraries
CDRS
Collaborative Digital Reference Service
CDS
Cooperative Discovery Services
CeDAR
Centre for Database Access Research
http://scom.hud.ac.uk/external/research/CeDAR/
Cedars
CURL Exemplars in Digital Archives
http://www.leeds.ac.uk/cedars/
CIC
Committee on Institutional Cooperation
http://www.cic.uiuc.edu/
CIP
Cataloging In Publication
CLIR
Council on Library and Information Resources
http://www.clir.org/
CNI
Coalition for Networked Information
http://www.cni.org/
CO-ASIST
Central Ohio Chapter American Society for Information Science and Technology
http://www.asis.org/Chapters/coasis/coasishm.htm
COLIS
Collaborative Online Learning and Information Services
http://www.colis.mq.edu.au/
CORC
Cooperative Online Resource Catalog
http://www.oclc.org/connexion/
CORE
Chemistry Online Retrieval Experiment
http://staff.oclc.org/oclc/research/projects/core/
CPSO
Cataloging Policy and Support Office
http://lcweb.loc.gov/catdir/cpso/
CRL
Center for Research Libraries
http://www.crl.edu/
CVS
Concurrent Versions System
http://www.cvshome.org/