- First World War Encyclopedia
- "The International Internet Encyclopedia of the First World War is being created by teachers and students from several different countries. Each entry includes several pages of narrative, illustrations and links to other relevant websites. The strategy is to look at the international, the national and the local dimension of the conflict"
- The Great European and World War
- Military Formations on the Western Front Austrian Order of Battle Belgian Armed Resistance. French Order of Battle The German Army. The British Expeditionary Force. The Schlieffen Plan. American Combat Formations. Web Links for the Great War.
- The Great War, 1914 - 1918
- The Great War - an abbreviated account A Chronological table of the Great War's main events The Road to Passchendaele Story of the 36th (Ulster) Division in the Great War The 36th (Ulster) Division and the Battle of the Somme Alex R. Murray - "Killed in Action" Booklist Maps and Pictures The Reckoning and Aftermath List of Belligerent States - by Nick Luft and Jon Casey Western Front Museums & Commemorative sites Some Great War Statistics
- The Great War - PBS online
- Highlights | Interviews | Timeline | Maps | Bookshelf |and more
- The Heritage of the Great War
- "The Heritage of the Great War is dedicated to the aftermath and consequences of World War One. We put some emphasis on onorthodox points of view. Furthermore this site features one of the most extensive WW-1 picture-collections on the Internet."
- In Flanders Fields, poem by John McCrae
- The story behind the making of the poem and the poem itself.
- McCrae House: Story of John McRae
- Includes many pictures.
- Photos of the Great War
- 1000 photos organized in the categories of Aviation, Troops, Commanders, Death and Destruction, Heads of State, Individuals, Locations, Weapons and Equipment, War at Sea, and Animals at War.
- Veterans Affairs Canada: An Historical Perspective: First World War
- Historical Perspective, Veterans Recollect, Collections, Records, Memorials, the Department, and Links.
- The World War Document Archive
- This is an archive of primary documents and images from World War I.
- World War I, The Great War
- Guide to World War I and the Western Front links, presented in chronological order.
- World War I: Trenches on the Web
- Online history of the Great War looking at various materials including period songs to sing and hear, remarkable photographs and more.
- World War I Aviation Homepage
- Information about the air battles that took place during World War I including on the pilots, aircraft, and related links.