If you are interested in character animation you probably know about CG Cookie. They have a load of free and pay-for tutorials. All the basic information is free. The advanced and time saving stuff is usually pay-for. So far, everything I’ve paid for I have been happy with. I haven’t paid for all that much, but I have paid for some.
Recently CG Cookie put up a new YouTube video: Animation Toolkit – Training Series for Character Animation in Blender. It is promoting their release of the new training series.
[youtube XAY3JbI4jBs]
This series gets into things that cannot be imported into Second Life™ with the BVH import. Gaia Clary’s Avastar is progressing toward what I think is the best all around tool for making mesh clothes and animating avatars, human or non-human. One of its better features is the ability to create .anim files that the SL Viewer can import. The .anim file format allows one to use more of the animation features found in Blender.