I've got a few more links than this lying around at home, I'll try to dig them up. In the mean time add some of your own.
In no particular order:
http://www.bodybuilding.com - where I usually buy my vitamins and supplements, also a lot of interesting articles to read
http://www.abcbodybuilding.com - extraordinarily useful site full of information about a myriad range of subjects, you'll want to check their nutrition and diet sections for sure
http://www.abcbodybuilding.com/slideshow.p...16&subId=37 - this subsection of abc deserves a link of its own - details on various types of exercises and slideshows to go with them
http://www.trainforstrength.com - like it says on the front page, the #1 bodyweight conditioning site in the world
http://boards.gamefaqs.com/gfaqs/gentopic.php?board=212 - martial arts board at gamefaqs, which also acts as the unofficial fitness board