Over at Your Dungeon Is Rock! I am compiling a couple of resources for old-school D&D gamers. One is a set of links to free, downloadable PDFs that bloggers have put together. The other is a listing of links to random charts. Obviously, this will be a constantly updating thing, as random charts are constantly being created by the blogosphere, and it seems there are more and more free PDF resources available every month.
I know I'm going to miss a lot of stuff. I know there's a lot out there that I'm not even really aware of at all. I need your help. If there is a free PDF resource out there you use that you think I ought to link to, send me an email at sully33 at gmail dot com or leave a comment here or here. Ditto for random charts.
Also, I'm not looking to compile a list of the free D&D retroclones. Tenkar has already done a great job of that.