On Steam, look for 'The Laughing Mann' (currently The Laughing #Santa for the holidays) with a considerable number of hours in Team Fortress 2, Crusader Kings 2 and Skyrim. I play Team Fortress 2 online a lot more than CK2 (but I could get into CK2 Multiplayer if I find some people to do it with).

On PSN, look for 'XSkittleKrazyX'. Max Payne 3, Battlefield 3, Dead Island, Resident Evil 6, Portal 2, Dark Souls, Uncharted 3, Borderlands 2, and The Last of Us are all my multiplayer games.