Synfig Studio - Just another WordPress site
PaintBerri - PaintBerri is a free art site that offers an awesome oekaki community.
FaceRig - FaceRig is a program that aims to enable anyone with a webcam to digitally embody awesome...
okekai - A small community site where you can draw, animate, and chat through pictures all for free
MocapX - Facial Motion capture app Maya and iPhone. With the MocapX animator, you can easily use the iPhone camera to animate characters in real time directly in Maya. MocapX tools enable you to use any custom or production rig as well as any Maya feature.
Brush Ninja - Hand-drawn Animated Gif Creator