The Animation Forum
Discussion for all forms of animation.

Voices in Animation
Discussion continuum hosted by Animation Artist Magazine: Anime, Films, 3D, Video Games, "How To" as well as a general animation forum.

Toon.Com
Cartoon and animation forums: general discussion, animated films, trivia, collectibles and marketplace.

Animation Nation
In-depth essays on the animation industry. Also includes message board and archives.

AWN Discussion Forums
Hosted by Animation World Network for fans and professionals alike to discuss anything and everything having to do with animation.

Animation Journal E-Group
Free e-mail list "for individuals who are conducting scholarly research in the areas of animation history and theory".

Animation Cafe
A place to talk about classical animation, 3D animation, stop motion, life drawing, layout and storyboarding in terms of problems, critique or suggestions.