Grand strategy games is a genre that I like very much but that it is difficult to play online. Is there any site where HoI fans gather to comment and play the game?
The best way is to register on the official HoI3 forums, and browse this subforum where people announce for multiplayer games (by region, etc).
I hooked up quite a good MP game with a couple of guys in my region a while back. Playing as France, I sadly got my ass handed to me ;)