Add Steam to the list.
Xbox Live: The Luftwaffe
Skate 3 (ofc)
NHL '13
FIFA '13 if you're not too good, I suck at it so I can't play with competent dudes
Saints Row 2
Stoked: Big Air Edition
Anything else I have, I just like playing co-operative multiplayer more than most things.
Steam: xNess13x (currently displayed as "○o。.<コ:彡 Poppy Squid Jr.")
Far Cry 3
Chat program to help organize SNES Emulator netplay: NHL 94/95, Kirby Superstar, whatever the hell you wanna play I'm down
PC Minecraft
Trackmania United