Western European Library Catalogs on the Nethttp://www.lib.virginia.edu/wess/eurocats.html
Portal site to individual libraries and to directories of libraries and archives outside the United States.
The Library of Congress Web Sitehttp://www.loc.gov
The Library of Congress collection includes more than 120 million items. You can search the LOC catalog here.
Smithsonian Institution Librarieshttp://www.sil.si.edu/
From this site you can search the vast holdings of the Smithsonian Institution Libraries.
Association of Research Librarieshttp://www.arl.org
Choose "Member Libraries" and scroll down for links to university library web sites across the U.S., arranged alphabetically.
