Creatoon – full fledged animation program with many features for creating different types of animations. Fairly easy to use
Website : www.creatoon.com
Pivot – for stick figure animation
Serif 3d Plus – free software for conventional “web” animation, such as banners and text, the free Photoplus supports gif animation also
http://www.freeserifsoftware.com/software/3dPlus/default.asp
Movies 13 – http://jansfreeware.com/jfgraphics.htm
Project Dogwaffle 1.2 – free paint program that allows for gif animation, commercial version is also available.
http://www.thebest3d.com/dogwaffle/free/index.html
Animationfactory.com