Krita - Kickstarter
Help Krita, the free paint software, become faster than Photoshop by supporting them on Kickstarter.
Free Photoshop Character Design Tutorial by Dan Luvisi
Stan Winston School are sharing a free Photoshop character design tutorial by Dan Luvisi.
Cyborg Design - Concept Art Production Techniques
Instructor Michael Pedro gives a detailed overview on concept art production techniques in ZBrush and Photoshop.