Whether they're tech related or not.

Angry Video Game Nerd - this guy is angry! He plays old crappy games and reviews them, and they are freakin' hilarious. I wish I could curse like this guy!
Not safe for work, don't watch if your kids are around, and don't watch if there are people around who would be offended at someone saying "I'd rather eat the rotten asshole of a roadkill skunk than play this POS"

I CAN HAS CHEEZBURGER? - I've been obsessed with lolcats lately, since that thread on UF. If you don't know what they are, this is a good place to start.

Pure Pwnage - 'taking n00bs to school since 2004' - A web series about a serious gamer, with a little bit of sci-fi thrown in here and there. BOOM HEADSHOT!