TurboSquid - TurboSquid offers 3D models for professionals.
DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
STLFinder - The 3d models search engine.
Inkbunny - Helping furry artists and story-tellers share their work.
3DOcean - 3D Models & Accessories From $1 for 3D Models, Textures, Materials & Shaders, 2D Concepts...
Behance - The Creative Professional Platform.