I know a lot of people used to play the game Attack! on Facebook, which is a game similar to Risk, but it goes a lot faster since it's on the internet. Anyways, I was really disappointed when Zynga bought Attack! and took it off the internet. However, I recently found a game on Facebook called Conqueror that is exactly like Attack! but judging by how many people play Conqueror compared to how many people played Attack!, nobody knows about it. The game is here:
http://apps.facebook.com/conquerorgame/?ref=ts