WorldCat

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WorldCat

Type of site	Network of library content and services
Available in	Chinese (Simplified) Chinese (Traditional) Czech Dutch English French German Italian Korean Japanese Portuguese Spanish Thai Urdu
Owner	Online Computer Library Center
URL	www.oclc.org/en/worldcat.html
Commercial	No
Registration	Optional, but some features require registration (such as writing reviews and making lists or bibliographies)
Launched	January 21, 1998; 26 years ago (1998-01-21)[1]
Current status	Online
Content license	Copyright policy
OCLC number	756372754

WorldCat is a very big online catalog, a list of books and things like books in tens of thousands of libraries in many countries.^[2]

WorldCat was built by OCLC, which is an organization of libraries. WorldCat is maintained by the group of libraries in OCLC.^[3]

1. ↑ 1998 is the date of registry of the WorldCat.org domain; see: "WorldCat.org WHOIS, DNS, & Domain Info – DomainTools". WHOIS. Retrieved 2017-01-21. However, the union catalog that became WorldCat was started three decades earlier, and it was already available on the web to subscriber libraries at OCLC.org several years before WorldCat.org was a registered domain name; see: "OCLC.org WHOIS, DNS, & Domain Info – DomainTools". WHOIS. Retrieved 2019-06-26.
2. ↑ "About OCLC". OCLC. Archived from the original on 2022-03-11. Retrieved 2022-03-11.
3. ↑ OCLC, "Vision, the world's libraries connected"; retrieved 2012-10-19.