Textures
../2 Dimensional Tutorials/Digital Painting - by Daz: techniques in the actual painting of your textures for polygonal characters.
../2 Dimensional Tutorials/Texture Theory - by poopinmymouth: more of a theory paper, covers the creation of false geometry in your textures.
Digital Painting
../2 Dimensional Tutorials/dhabih eng tutorial - by dhadin: process for producing computer art with a Wacom tablet and Photoshop.