Dungeon Crawl Inc. A d&d comic by our own Kayless. Once in a great while there comes a story that capture the imagination of all who read it. This is not that story.
Order of the Stick. Another funny d&d comic. It looks simple but has some very good humor.
Creatures at ENWorld Some online creatures for your quest.
Forgotten Realms maps These maps are all the produced by TSR. They are all available for download from the WotC website, but are not very easy to find. It merely makes maps already available for free a little easier to access.
d&d resources Resources for d&d of many kinds.
Web Enchancements for d&d books These are free addons to WotC books. Nice of 'em, isn't it?
Other downloads usefull downloads like spellsheets and creatures sheets.