The World at War, History of WW 1939-1945
Well crafted timeline. List of Global World War II Museums.
World War-2 Net
Very Rich timelines. Great film biography.
Avalon Project of Yale Law School
If its documents you are after this is the place.
BBC World War History Site
Proof that parts of the BBC are still functioning well.
WW2 People's War
More from the BBC but this time from a people's history perspective.
Eyewitness to History.com - World War II
Lots of personal histories to view.
US War Veteran's site
First rate on the American perspective