slimanimation - to make stick figure or hand drawn animations
Pixton - Our goal at Pixton Comics is to enable everyone in the world to make comics.
PaintBerri - PaintBerri is a free art site that offers an awesome oekaki community.
Storyboard That - Storyboard That is the world's best online storyboard creator.
Brush Ninja - Hand-drawn Animated Gif Creator
ToonDoo - ToonDoo is a fun and easy way to create comic strips without having to draw.