Current directory of more than 5500 repositories and more than 140,000 collections of primary source material across the United States...

A searchable database of library Web pages, online catalogs, and system profiles...

"Lists over 6,100 pages from libraries in over 100 countries...

Links to two databases which allow searching of manuscript and archival materials cataloged since 1986 and held in repositories in the United States...

"A listing of over 5000 websites describing holdings of manuscripts, archives, rare books, historical photographs, and other primary sources for the research scholar...

Directory of websites for official State Libraries; from the Library of Congress...

Includes information on over 30,000 universities, colleges, schools of art and music, libraries, learned societies, research institutes, museums and art galleries as well as over 400 international cultural, scientific and educational organizations around the world...