Running two biweekly 4e campaigns (5th & 4th level.) Playing in Sagiro's biweekly 3.5 campaign (19th lvl, about 15 years and running.) Playing in a monthly Golden Age MnM game run by Storminator.
I'm also running playtests for Robin Law's game Skulduggery (five games since GenCon.) In May I ran a Paranoia game 4-5 times, and at GenCon I played in a 1e AD&D game, a 3.5e D&D game, a Dread game, and a game of Mouse Guard. Next weekend I'm getting together with my original gaming group to play 1e again for the first time since high school.
Phew!