A site with lots of great pictures of generals, soldiers, equipment, and miscellanous pictures of life during World War One. Most photos used for this website came from this archive.
Great site with many articles about the war, a timeline, maps, features on people, weapons, and battles, and lots of primary documents and literature on the war
The BBC's website on the First World War, focuses mainly on British involvement but has a series of good articles analyzing the war from other perspectives, such as German, Russian, Australian, and Canadian.