Links
Writing sites
Storycrafter A very well organized role playing/collaborative storytelling site. Extremely addictive, attempt at your own risk.
Fanfiction.net
Fanfiction and LOTS of it, in ever category imaginable. Look for me under the name "Neverend".
Fictionpress
Massive archive of original fiction, some pretty good stuff if you can wade through the slush pile.
Elfwood
Primarily a fantasy/sci-fi art archive (and the art is absolutely beautiful), but includes writing.
Webcomics