Post in this thread and I'll add you on this list. If you want, put some games that you are currently playing right now, though that's optional.
XBox Live (XBL)
TheA2P (Borderlands 2, Ultimate Marvel vs. Capcom 3) [A2P]
Kibblre [Kibblre]
senorbritches (Black Ops 2, Halo 4, Borderlands 2, Skyrim, Hydro Thunder) [Emo_Saur_]
Dr Oc1ogonapus (Halo 4, Gears of War 1-3, Skyrim, Borderlands 2) [yo man im awesome]
MrPop25 [MrPopadopalis25]
Pr0fraine [Arntonach]
mproske [PrawnSkunk]
Gun92 (Black Ops 2, Borderlands 2, Need for Speed Most Wanted, Resident Evil 6) [Gun92]
agent babyjesus (Halo 4 Marvel vs. Capcom 3, Gears of War 2, Skyrim, Bioshock 1-2) [Wayward Vagabond]
PAKAman13 [Arkuski]
mfostar (Black Ops II, SSX) [RagedBerserker]
Sutty44 [j-rodd123]
pR Custom (Modern Warfare 3, Halo 4, Trials Evolution, Modern Warfare 2, Black Ops 2) [customstuff]
rsr1264782 [rsr2]
Raskanally (Dead Space 2, Guitar Hero, Modern Warfare 2-3) [raskanally]
RGC Afterlife [PriestREA)
Misconductive (Ultimate Marvel vs. Capcom 3, Street Fighter vs Tekken, Modern Warfare 2-3, Black Ops, Halo 3/Reach [Tibbers]
XLZ Poison (Black Ops 2) [Poison-]
SurdifiableOne (Black Ops 1-2, Ultimate Marvel vs. Capcom 3, Crysis 2, Halo 4) [SurdifiableOne]
To0PhAntAsY 4U [.Rarity]
Tsuzama [craigr]
Nintendo
Felleg [MarioNintendo]
Playstation Network (PSN)
Getfear [andy-o24]
Hateandhatred [Hateandhatred]
Hobbit_the_Great [Arntonach]
banished luna (Black Ops 2, Modern Warfare 2) [SethColeman]
Mourningfall (Black Ops 2, Modern Warfare 2-3) [Mourningfall]
Tsuzama [craigr]
Steam
Kibblre (Team Fortress 2, Sain'ts Row the Third, Torchlight II) [Kibblre]
adenbritches (Blops 2, Halo 4, Borderlands 2, Skyrim, Hydro Thunder) [Emo_Saur_]
MrPopadopalis25 [MrPopadopalis 25]
LucKeyHoleInOne [andy-o24]
renos127 (Team Fortress 2) [xVaLoRx]
CBRx (coolboyrulez)
limegreenapples (Counter Strike 1.6, Counter Strike Global off, Portal 2) [xNiX]
rsr1264782 [rsr2]
Fight Me IRL [PriestREA]
omniux [dragon890x]
Berrynose [.Rarity]
Crizzlers [craigr]