Federation of American Scientists
Fas: Intelligence Resource Program: U 2 Spy Plane
Complete history and information page from the development of the U-2 to the present day. Includes great illustrations and helpful tables.
Yale University
Avalon Project: The U2 Incident 1960
Collection of primary documents released by Soviet and American governments regarding the downing of an American military spy plane flown by Gary Powers over the USSR.
The Cold War Museum
U 2 Incident
A brief, but clearly-stated, description of the downing of Francis Gary Powers' U-2 spy plane over the USSR during the Cold War. Powers survived the incident, and the USA claimed the spy plane was flying for weather purposes. Site...
Other
Aerostories: Gary Powers' Misadventure
An excellent resource for learning about the U-2 spy plane flown by Francis Gary Powers that was shot down over Russia in 1960. Contains a very detailed examination of the origins of spy plane missions plus fabulous details that bring...