Yes,

Blender is good for animation, here http://www.blendercookie.com/ you can find a lot of tutorials about animation,

here some good for rendering: http://www.blenderguru.com/

a good architecture site: http://www.blender3darchitect.com/

for beginners: http://www.gryllus.net/Blender/3D.html

and here a good humen for Blender: http://www.makehuman.org/

Rudl