I learned about the BBC’s History website from Ken Halla author of the US History Teacher’s Blog. The BBC History website has a wonderful collection of resources on World War I, World War II, the Holocaust, and the Cold War. This would be a wonderful resource for more information when studying WWI, WWII, or the Cold War or it would make a great web-quest for students.
Here is an interesting resource on interactive World War I Maps as well as a list of resources on World War I.
Citation: BBC History