I am taking a few online classes this month (what's new), but I think this is it for me for a while unless something really awesome comes along. A couple of the classes have to do with drawing and painting faces, but I am also taking an awesome class in color theory, offered by Julie Pritchard andChris Cozen.
Great class and exercises to help one understand color and the color wheel. They focus mainly on Golden products since Chris works for Golden. They peaked my interest so much that I checked out books on the subject and found these three.