OCLC will be conducting a maintenance install this Sunday, December 13, 2009, which is typically completed between 2-6 A.M., ET. WorldCat.org and WorldCat Local will be unavailable during this time. 
WorldCat is a product of OCLC (Online Computer Library Center, Inc.). OCLC is a nonprofit, membership, computer library service and research organization. It was first incorporated on July 6, 1967 as the non-for-profit Ohio College Library Center. Its headquarters is located in Dublin, Ohio.
Over 60,000 libraries in 112 countries and territories use OCLC services to locate, acquire, catalog, lend and preserve library materials. Other OCLC products include NetLibrary, FirstSearch, Dewey Decimal Classification, VDX, WebJunction, QuestionPoint.
