US National Archives
Nara: A People at War
A collection of photographs, posters, newspaper clippings, and other documents telling the stories of American civilians and military personnel during World War II.
US National Archives
Nara: America on the Homefront: Selected World War Ii Records in New England
Brilliant look into life on the homefront during World War II. See radio spots rationing and controlling prices, wartime research, defending the homefront, and more. Many of the links are .pdf documents.
Other
Foreign Volunteer Legion: Ww2 Axis & Foreign Volunteer Awards & Stamps
An interesting site which describes the many different groups of volunteers who fought for the Germans during World War 2 and the stamps issued by their various governments. For example, Hungary had many groups who fought for the Germans...
Ibis Communications
Eye Witness to History: Loose Lips Sink Ships
This site discusses article discusses the rules of conduct regarding disclosure of personal and military information that may have compromised military efforts during World War II.
A&E Television
History.com: World War Ii
A comprehensive look at World War II including video clips and audio clips of important speeches by the world leaders of the time.