I don't normally do this on my own blog, but I figured this stuff is too good to not share. Also for my own reference. Enjoy!
Online Resources -
Facity - an online collection of faces.
Photo Matters - amazing interactive resource on lighting, lenses, and other photography subjects.
Color Scheme Designer - Fine tune your color palette with mono, complementary, triad, tetrad, analogic, and accented analogic color schemes. Very useful.
CG Textures - library of images perfect for your textures and brushes.
Pixelovely - free at home life drawing tools featuring humans and animals.
Online Education -
Gnomon Workshop - yep.
Phoenix Atelier - online workshops, founded by Cesar Dacol Jr.
Eat 3d - tons of great videos to learn from, some of them even free.
Digital Tutors - huge collection of workshops.
Google - it's aight.