Here are a few that didn't seem to have been listed:
Fog Club- A really nice comic about two friends who run an anime club at their college. The story follows the two and their 'relationships' among other things. Also home of the 'NeoRanger' comic.
http://fogclub.keenspace.com/index.html
Eidolic Fringe- A well drawn comic about a boy who after saving a girl he likes, (by pushing her outta the way of a bus, which then hits him) Finds himself in a strange world not unlike that of any RPG.
http://www.bonsaimechafactory.org/eidolicfringe/
Kid Radd- The sprite comic that uses ORIGINAL SPRITES! A must for videogame fans.
http://www.kidradd.com/
This is an interesting little comic I stumbled upon on day. It's about a boy named Wes who finds a genie named Belly. Belly was once a spoiled Princess who must now serve her 'master' Wes.
http://www.princessofwishes.com/
StarDriods- Well.... it's a hand drawn MegaMan comic. Yeah, I couldn't resist.
http://pages.prodigy.net/amywil/index.htm
As If- Well I haven't read this one in a LOOOOONG time. But I enjoyed it when I did.
http://www.asifcomic.com/