Describes over 220,000 collections of primary source material housed in thousands of repositories across the United States, the United Kingdom and Ireland. View a tutorial on this database here.
Provides records of any type of material cataloged by OCLC member libraries, such as books, music, videos, microform, digital content, and medieval manuscripts. View a tutorial on this database here.
The Archives Portal Europe provides access to information on archival material from different European countries as well as information on archival institutions throughout the continent.