Blizzard gave up on Diablo April Fools posts a while ago but there are still plenty of good ones to enjoy this year.
Over on PC Invasion there’s a compilation of everything that’s appeared that’s video game related as well as some of the other general ones that are quite amusing. The list is being continually updated today so check it out.
As far as we can tell, the only Blizzard related one in the list this year is for WoW and their special mini-events.