They're the 2 most popular animation sites around.

http://darkdemon.org/
-8910 members
-at least 5 of them elite

http://www.droidz.org/
-7493 members
-2 elites
-hundreds of free .stk downloads

both of these sites are amazing, and pretty much anyone who knows anything about animation is registered on both of them. I suggest you go there to check it out.