An archive of primary documents from the Great War that is international in scope. The texts of treaties and other official papers can be found here, as well as photographs, and memoirs.
This collection from the National Archives "contains images obtained from the U.S. Army Signal Corps, various federal and state government agencies and the American Red Cross."
"The Veterans History Project of the American Folklife Center collects, preserves, and makes accessible the personal accounts of American war veterans so that future generations may hear directly from veterans and better understand the realities of war."