Online 3D Viewer Evaluation

We want to get an overview what websites are there to show/share 3D models online. Basically like a youtube for 3D models :)

http://3dfile.io/

supports "exploding" of assemblies with a slider - very handy to show assembly of several parts - does not support shadows so general display quality is not spectacular - support IGS, and a few other formats

http://p3d.in/

supports textures and more complex shaders - rather flexible with material setup - no shadows - supports only OBJ format

http://www.3dvieweronline.com

Did not work with iges file upload. viewer looks rather unpolished.

http://www.sharecad.org

Can't even show solid models, only wireframe...