Any good free materials libraries online? I'm wondering if there's any addons or online libraries of materials I can download. I've found one called online_mat_lib, but then discovered it was from 2008 and thought by now something like that might already be integrated into Blender.
Some resources:


600+ Materials at Open Material Repository
Temporary offline (http://www.blender-materials.org/) backed up by the above.
For textures cgtexures is a good resource.