WorldCat is the largest library network in the world. WorldCat is a co-operative catalogue (open access version) of library holdings worldwide, containing over 1 billion records catalogued by OCLC member libraries. Used mainly for information on books, WorldCat also includes materials in other formats including: books, manuscripts, websites and internet resources, maps, computer programs, musical scores, films and slides, newspapers, journals and magazines, sound recordings, articles, chapters, papers, and videotapes.
The WorldCat Services Administrative Module includes a link to view your usage statistics.
FirstSearch Base Package (includes WorldCat):