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