VideoScribe - Make your own whiteboard video animations with Sparkol VideoScribe – award-winning video scribing app for PC, Mac and iPad. Free trial available.
Synfig Studio - Just another WordPress site
GoAnimate - Make your own animation quickly and economically with GoAnimate. Reach prospects and customers with animated videos online about your business and products.
CrazyTalk Animator - CrazyTalk Animator, the next level of 2D animation. Create actors using any photo or illustration.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Renderforest Video - Free animation and intro maker, slideshow and video creator