Generic Links

Something Awful - A humour website with an incredibly useful and hilarious forum. costs 10 $ to register (way worth it)
Twoplustwo publishing - Poker website that sells book. It has a great forum for tips and tricks to play hold'em poker
Comic Genesis - free webcomic webhosting and automation service for webcomics, its at the bottom of every page folks! :D

Art related
Gamer Psychotica - My old webcomic, 200+ comics in the archive, check it out if your not squeamish (it was 2-3 years ago)
The Drawing Board - great art critique and commenting forum for talented artists. High level of talent so i only read it :)
PvP - Done by the one and only Scott Kurtz, that guy's a machine, he may be late with some of his strips, but he still gets them done daily (having done that myself for          2 years i can say its no easy feat)
Penny Arcade - Hilarious comic done by Gabe and Tycho 3 times a week, i recommend it.