Library Catalogs
Yale University Library (Orbis) The Library's centralized access point to all of the electronic resources it currently makes available over the University's network or over the Internet.
Eureka The bibliographic database of the Research Libraries Group, with membership composed of about 150 major research libraries, archives, and museums in the United States, Canada, and -- increasingly -- the rest of the world as well. The database, numbering over 22 million records, is comprised of the cataloging records of these institutions created since the mid-1970s -- and for older materials as these institutions undertake retrospective conversion of their card catalogs -- for books, serials, maps, scores, records, visual materials, computer datafiles, and manuscript and archival material. With WorldCat (see following entry) this is one of the two "national databases" of the United States.
WorldCat Like Eureka, WorldCat represents the shared cataloging records of libraries in the United States and abroad, but many more of them and a wider variety of them. It covers many more academic libraries of all sizes and public libraries, which are largely excluded from Eureka.
Library Catalogs Worldwide Guide to catalogs of major research libraries worldwide (e.g. Harvard, New York Public Library, Bibliothèque Nationale de France).
COPAC Provides free access to the merged online catalogues of 24 of the largest university research libraries in the UK and Ireland plus the British Library & the National Library of Scotland.
Jewish Libraries and Catalogs (from Global Jewish Information Network)
Other online catalogs via Yale University Library