Art

Digital Canvas

Queeky.com

Sketchfu - allows users to create drawings online and save the steps in a video format

A Painting a Day - a good blog for introducing various art techniques and visual support for various topics.

DaVinci's Impact

Artscope

Pixenate - an online digital darkroom

Color Scheme Designer - put colors together to design most anything.

PicLit - view pictures and add words to describe.