The Lusitania
- Presents an account of the German torpedo attack that sank the passenger liner and resulted in America's involvement in World War I. Includes references to primary sources. [Requires Macromedia Flash 5]
- http://www.click2disasters.com/lusitania/the_lusitania_ch1.htm

The World War I Document Archive
- Provides photographs, links, articles, a biographical dictionary and related resources.
- http://www.lib.byu.edu/~rdh/wwi/

American Leaders Speak
- Sound recordings of political speeches by American leaders during World War I and the presidential election of 1920.
- http://memory.loc.gov/ammem/nfhtml/nfhome.html

Encyclopedia of the First World War
- Includes a timeline of the war, a look at the political and military leaders, an outline of major offensives, and statistics. Also provides information about weaponry, tactics, the arts of the period, and the role of women.
- http://www.spartacus.schoolnet.co.uk/FWW.htm

The Great War
- Click through maps and images of Eastern Europe, follow an interactive timeline, or read historian interviews with this PBS companion site about World War I.
- http://www.pbs.org/greatwar/