Web Comics/Manga

I've been putting this off for a while, mostly because some of these are hard to categorize.  Instead, here they are in alphabetical order:

Alien Dice - sci-fi, cute animals, girl meets alien boy
AppleGeeks - sci-fi, gaming, cyborg girl, comedy
Blip - fantasy, demons, angels, witches, cyborgs, vampires, all rolled into a comedy
Candi - slice of life, comedy, college

Charliehorse - comedy, succubus summoned to help a guy get a date, sometimes borderline NSFW

Ctrl + Alt + Del - gaming, insanely funny, robots, parody
Ctrl + Alt + Del: Sillies - a more insane daily version of the above
DAR: A Super Girly Top Secret Comic Diary - slice of life, comedy, occasionally NSFW
Devil's Panties - slice of life, comedy
Dilbert - if you don't know what this is, you suck
The Dreamland Chronicles - fantasy, dreamland, comedy, 3D
El Goonish Shive - sci-fi, furries, comedy, fantasy
Errant Story - fantasy, elves, half-elves, comedy
Faans - sci-fi, fantasy, secret organizations
Flipside - fantasy, occasionally NSFW
Get Fuzzy - syndicated, talking cat and dog, somewhat anti republican but still funny
Girls with Slingshots - slice of life, comedy
Girly - fantasy, slice of life, comedy, sometimes borderline NSFW
Kevin & Kell - slice of life, comedy, world of talking animals with a wolf married to a rabbit
Marilith - female assassins, enough said
Least I Could Do - slice of insanity and comedy
Lizzy - sci-fi, cyberpunk, FLASH, occasionally NSFW

The Lounge: Sexy, Cute, and Purrific - slice of life, comedy, occasionally borderline NSFW

MegaTokyo - slice of life, fantasy, sci-fi
Menage a 3 - slice of life, comedy, frequently NSFW
Misfile - slice of life, racing, fantasy, comedy
Moose Head Stew - slice of life, comedy

The Noob Comic - gaming, mmorpg parody, comedy

Off The Mark - syndicated, parody
Okashina Okashi - sci-fi, fantasy, comedy, occasionally borderline NSFW
Otaku no Yen - slice of life, comedy
Over the Hedge - syndicated, comedy, talking animals
Penny and Aggie - slice of life, comedy, drama
Penny Arcade - gaming, comedy, parody
Pinky TA - sci-fi, occasionally borderline NSFW
PvPonline - gaming, fantasy, friendly ogre, parody, comedy
Questionable Content - slice of life, comedy, robots
Sherman's Lagoon - syndicated, talking fish, comedy
Sinfest - fantasy, parody, occasionally borderline NSFW
Sore Thumbs - fantasy, comedy, occasionally borderline NSFW
Trying Human - sci-fi, comedy, greys, occasionally NSFW
UserFriendly.org - tech support, fantasy, comedy
VG Cats - gaming, parody, comedy
Wapsi Square - slice of life, fantasy, mythology, comedy
Weregeek - gaming, slice of life, comedy
xkcd - no one can be told what the xkcd really is, you have to see it for yourself
The Zombie Hunters - fantasy, zombies
Zortic - sci-fi, parody, comedy