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WikiDoc Resources for OCLC


Most recent articles on OCLC

Most cited articles on OCLC

Review articles on OCLC

Articles on OCLC in N Eng J Med, Lancet, BMJ


Powerpoint slides on OCLC

Images of OCLC

Photos of OCLC

Podcasts & MP3s on OCLC

Videos on OCLC

Evidence Based Medicine

Cochrane Collaboration on OCLC

Bandolier on OCLC


Clinical Trials

Ongoing Trials on OCLC at Clinical Trials.gov

Trial results on OCLC

Clinical Trials on OCLC at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on OCLC

NICE Guidance on OCLC





Books on OCLC


OCLC in the news

Be alerted to news on OCLC

News trends on OCLC


Blogs on OCLC


Definitions of OCLC

Patient Resources / Community

Patient resources on OCLC

Discussion groups on OCLC

Patient Handouts on OCLC

Directions to Hospitals Treating OCLC

Risk calculators and risk factors for OCLC

Healthcare Provider Resources

Symptoms of OCLC

Causes & Risk Factors for OCLC

Diagnostic studies for OCLC

Treatment of OCLC

Continuing Medical Education (CME)

CME Programs on OCLC


OCLC en Espanol

OCLC en Francais


OCLC in the Marketplace

Patents on OCLC

Experimental / Informatics

List of terms related to OCLC


OCLC Online Computer Library Center, Inc. is a "nonprofit, membership, computer library service and research organization dedicated to the public purpose of furthering access to the world's information and reducing information costs", according to its website. It was founded in 1967 as the Ohio College Library Center. More than 60,000 libraries in 112 countries and territories around the world use OCLC services to locate, acquire, catalog, lend and preserve library materials.[1] The organization was founded by Fred Kilgour, and its head office is located in Dublin, Ohio, United States.

OCLC acquired NetLibrary, the largest electronic content provider, in 2002. OCLC owns 100% of the shares of OCLC PICA, a library automation systems and services company which has its headquarters in Leiden in the Netherlands and which was renamed "OCLC" at the end of 2007.[2] In June 2006, the Research Libraries Group (RLG) merged into OCLC. On January 11, 2008, OCLC announced that it had purchased EZproxy.


OCLC provides bibliographic, abstract and full-text information to libraries, students, faculty, scholars, and other information seekers.

OCLC and its member libraries cooperatively produce and maintain WorldCat—the OCLC Online Union Catalog, the largest OPAC (Online Public Access Catalog) in the world. WorldCat contains holding records from most public and private libraries worldwide. WorldCat is available through many libraries and university computer networks. The Open WorldCat program makes records of library-owned materials in OCLC's WorldCat database available to Web users on popular Internet search, bibliographic and bookselling sites. OCLC member libraries' catalogs are more accessible from the sites where many people start their search for information.

In October 2005, the OCLC technical staff began a wiki-like project that allows readers and librarians to add commentary, and structured-field information, associated with any WorldCat record.

OCLC owns a preservation microfilm and digitization operation called the OCLC Preservation Service Center, with its principal office in Bethlehem, Pennsylvania, U.S. Libraries, museums, historical societies, colleges and universities utilize the OCLC Preservation Services to preserve printed works, books, maps, manuscripts, newspapers, etc. in microfilm format for future generations due to its 500-year life expectancy. In addition OCLC Preservation Services converts print and microfilm to digital objects for computer access.

Online database

OCLC maintains a database for cataloging and searching purposes which is used by librarians and the public. OCLC Passport was one of the computer programs used. Connexion was introduced in 2001 and replaced Passport when it was phased out in May 2005.

This database contains records in MAchine Readable Cataloging (MARC standards) format contributed by library catalogers worldwide who use OCLC as a cataloging tool. These MARC format records are then downloaded into the libraries' local catalog systems. This allows libraries worldwide to find and download records for materials they want to add to their local catalog without having to go through the lengthy process of cataloging them each individually.

As of February 2007, their database contained over 1.1 billion catalogued items. It remains the world's largest bibliographic database. Connexion is available to professional librarians both as a computer program or on the web at connexion.oclc.org.

WorldCat is also available to the public for searching through a web-based service called FirstSearch, as well as through the Open WorldCat program.

Dewey Decimal System

The Online Computer Library Center acquired the trademark and copyrights associated with the Dewey Decimal Classification System when it bought Forest Press in 1988.


WebJunction is a division of OCLC funded by a grant from the Bill and Melinda Gates Foundation.


QuestionPoint reference management service provides libraries with tools to communicate with users in multiple ways. This around-the-clock reference service is provided by a cooperative of participating global libraries.

Regional service providers

Regional service providers contract with OCLC to provide support and training for OCLC services. This chart represents only OCLC services.

Name Region Website
Amigos Library Services Arizona, Arkansas, New Mexico, Oklahoma, Texas www.amigos.org
BCR (Bibiographic Center for Research) Alaska, Colorado, Idaho, Iowa, Kansas, Montana, Nevada, Oregon, Utah, Washington, Wyoming www.bcr.org
INCOLSA Indiana www.incolsa.net
ILLINET Illinois www.cyberdriveillinois.com/departments/library/who_we_are/OCLC/home.html
MINITEX Library Information Network Minnesota, North Dakota, South Dakota www.minitex.umn.edu
MLC (Michigan Library Consortium) Michigan www.mlcnet.org
MLNC (Missouri Library Network Corporation Missouri www.mlnc.org
NEBASE Nebraska www.nlc.state.ne.us/netserv/nebase/nebserv.html
NELINET Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont www.nelinet.net
Nylink New York nylink.org
OHIONET Ohio, West Virginia, Western Pennsylvania www.ohionet.org
PALINET Delaware, Maryland, New Jersey, Pennsylvania, West Virginia www.palinet.org/
SOLINET Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Caribbean www.solinet.net/
WILS Wisconsin www.wils.wisc.edu/
FEDLINK U.S. Federal Libraries www.loc.gov/flicc/
OCLC service centers
OCLC Eastern Service Center Washington D.C., Maryland and Virginia
OCLC Western Service Center Alaska, California, Hawaii, Idaho, Montana, Oregon, Washington and Guam
OCLC Asia Pacific
[[OCLC Canada
OCLC Latin America
OCLC PICA (OCLC Europe, Middle East and Africa)

See also

  • Dublin Core


  1. "OCLC renames European division". Business First of Columbus. October 22, 2007. Retrieved 2007-11-09.
  2. Michael Rogers (October 22, 2007). "CLC/OCLC Pica Merge". Library Journal. Retrieved 2007-11-09.

External links

an:Online Computer Library Center de:Online Computer Library Center it:Online Computer Library Center he:Online Computer Library Center lt:OCLC sk:Online Computer Library Center sv:OCLC