Free textures
July 16, 2008David Leggett of Tutorial 9 has rounded up 99 Free Canvas, Paper, Paint, and Metal Textures
There are free patterns and textures from highresolutiontextures.com
CTG Textures is a texture site run by a 3D artist. It is one of those sites on which you will spend hours because there is a forum on the site as well as tutorials.
Texture King also has a large collection of high quality textures
3Dmd.net is also another site that hosts a large collection of textures which can be used in 3D modeling
