Resources

Basic Info

http://www.white-wolf.com - The holy grail if you will, credit must be given to the guys who bring us all the magic. Also pretty extensive and useful forums.
http://www.rpg.net - A pretty extensive list of forums, not dedicated to exalted by any means. Great community.
The Map of Creation - The best map of Creation we've found, and our official map.
Calendar for Creation - The best Calendar for Creation we've found, and our official map.

http://wiki.white-wolf.com/exalted/index.php?title=Main_Page - White Wolf's own, semi-official wiki. Not everything you find their is cannon, but some is, contains a lot of neat content. A developer run errata is also awesome when the developers have time to spend on it. Check out their resources page for a massive list of great fan content.
http://exalted.xi.co.nz/wiki/ - Extensive wiki all about exalted, contains tons of great stuff!
http://www.conradhubbard.com/wiki/index.php?title=Main_Page - Conrad Hubbard is a great wiki to find some very cool ideas, I also really like the set up of the wiki.
http://fixalted.bazzalisk.org/index.php?title=Main_Page - A wiki from Bazzalisk mostly revolved around changes to the system but also includes some pretty extensive errata.
Astrology Notes - A handmade guide to using Astrology by Brian, from the Sidereal book.

http://www.lookshy.dk/sheets/ - Great character sheets for all 2e exalted types, working on DotFA too!
http://www.bazzalisk.org/ - Some of my personal favorite character sheets, I actually prefer the old style due to my dislike for charm cards though. Still great stuff, not just character sheets.
http://www.voidstate.com/rpg/ - Not sure I can say enough about voidstate, I think everyone pioneered the advanced character sheets off his design. Not to mention all the great other goodies on his site, great exalted name generator!
http://www.alabrax.com/exalted/content/character_sheets.html - Big list of character sheets from single page to multipage, certainly contains some other goodies on his page as well.