The Digital National Security Archive.The Digital National Security Archive provides access to over 35,000 UNOFFICIAL declassified documents of national security information outside the United States Government at George Wasington University;
more documents and updates. Click on the blue i for sample collections.
See http://www.gwu.edu/~nsarchiv/ for more information
Sample Collections:
The Berlin Crisis, 1958-1962.
U.S. Espionage and Intelligence
The U.S. Intelligence Community
The Soviet Estimate, 1947–1991
U.S. Military Uses of Space
U.S. Nuclear Non-Proliferation Policy,1945-1991
China and the U.S., 1960–1998
Presidential Directives on National Security From Truman to Clinton
Presidential Directives on National Security,
Part II: From Harry Truman to George W. Bush
The Iran Contra-Affair: The Making of a Scandal, 1983-1988
Terrorism and U.S. Policy, 1968–2002
Death Squads, Guerrilla War, Covert Operations, and Genocide: Guatemala and the United States, 1954-1999