Links to things that you've probably seen before, but still rock:
Whether you want to host a comic of your own, or just read a lot of great comics, Smackjeeves is a good place to go.
A list o' webcomics. Need we say more?
The adventures of a man who is both Doctor and Ninja. Need we say more? Updates Monday-Wednesday-Friday.
Hilarious parodies of video games and anime, using cats. Updates Mondays.
Fan of Yu-Gi-Oh or not, chances are, you'll find this series delightfully funny. Updates as they're made.
One of the older most well-known comics out there, Penny Arcade updates Monday-Wednesday-Friday.
Megatokyo was the first webcomic that DL or En read, thanks to En finding the first volume at the public library. It updates Monday-Wednesday-Friday.
Simply put, this is mad science at its very best. With wonderful art, and amazing writing, Girl genius is one of the best comics out there--if you haven't taken a look yet, then you really should. Seriously--why are you even still looking through these links? Updates Monday Wednesday and Friday.
The art of XKCD may not always be the most entralling bit of atistry out there, but don't let that deter you--the writing and humor more then makes up for it. Updates Monday Wednesday and Friday.
One could call The Order of the Stick a simple comic made MS Paint style about about Dungeons and Dragons, but that would be severely understating its value--even En, who has never played D'n'D, and generally likes looking at hand drawn stuff more then other kinds of art, was drawn in by the good humor, storytelling, and characters presented by this comic...So whether it really sounds like your thing or not, it's worth taking a look at! Updates three times a week.
A very, very good tutorial, helpful for pretty much every graphic-related program.
Need fonts? 1, 001 fonts has a good amount to choose from.
Fairly well known, Pyroman often uses this site for his screentones, of which it has many.
You can never have too many fonts, right? If you think so too, Dafont is the place for you, with a huge selection.
Not really webcomic related even by the thinnest of links, but the MLA citation marker on this site is really useful for s papers you might be writing...
Kinda speaks for itself, doesn't it? The generator can be a bit slow at times, but for being free it gives easy to make, decent quality banners and buttons, along with some fonts.