The Declassified Documents Reference System provides online access to over 500,000 pages of previously classified government documents. Covering major international events from the Cold War to the Vietnam War and beyond, this single source enables users to locate key information underpinning studies in international relations, American studies, United States foreign and domestic policy studies, journalism and more.

The Digital National Security Archive contains the most comprehensive collection of primary documents available. The database includes more than 60,000 of the most important declassified documents regarding critical U.S. policy decisions.

An index of U.S. congressional publications, with abstracts and links to full-text documents and related sites.