Just found this and thought I should share. It’s downloadable, and so far I’m super impressed. I still love having a book, but as far as running a game goes… this is nice.

http://www.systemreferencedocuments.org/resourc…

I prefer the way this one is laid out better.

http://www.d20srd.org/

Flip, we need a way to update your links section. There has got to be a ton more information out there!