The On-line Computer Library Center (OCLC), an international database, provides the library with bibliographic and location information for millions of items, including books, serials, microforms and audiovisual materials. As new acquisitions are processed, they are added to WebPAC, the automated library catalog.
Cataloging Policy & Support Office (CPSO)
LC Web Home Page (Library of Congress WWW Server)
Library of Congress (Classification at Geocities)
OCLC Home Page
OCLC bibliographic formats
OCLC participating institutions list
Technical Standards for communicating electronic bibliographic data and metadata