AtWar-Game.com
Afterwind, now called atWar is not quite Risk but it shares some strategic similarities. I am including it here in case anyone wants to take a step beyond standard Risk gameplay. The interface and game can be a little daunting at first, given that its much more complicated than Risk, but if you stick with it, you can really get a satisfying strategic experience. The community is strong and the developer is active. It’s one to watch in the strategic space for sure.