HDRI's

I couldn't get Chris's HDRI's uploaded to blogger, but here are some good links to free ones.

http://www.evermotion.org/index.php?unfold_exclusive=84&unfold=exclusive
http://hdri.3dweave.com/library/
http://www.debevec.org/Probes/
http://www.hdrimaps.com/downloads.html

Also, here's a good texture library:
http://www.mayang.com/textures/