More music
DJ Mindermast on MySpace
Preston and Steve on WMMR
Jeremy Sliwoski
Tangents
Enter the Haggis

Gaming
RPGnet
Roleplay Online
Amputheatre: The World's Goriest Boardgame
Chain of Being
Cheapass Games
Order of the Stick

Other entertainment
Discworld
Something Positive
Questionable Content
Perry Bible Fellowship
morons.org