Rebecca Lacquey sent me the map above as part of our contest to give out the Alger Hiss book. With each click you can see the expansion of the German advancement and then the backwards trend. But there are also cool things like planes that fly around the map. It makes for a great way to summarize WWII. I'll be taking submissions through Wednesday of next week if you can find an interesting site for us to promote and attach an explanation with it.