SketchFab has been updated to now being able to include animations!
All it takes is exporting a rigged file to FBX and you can have your animated love in a browser. Here's all the proper details on the SketchFab blog.
(ANIM) COH2: The British Forces - 'Tommy' Idle by Relic Entertainment on Sketchfab
Check out the thread about Sketchfab animations in our Animation forum on Polycount!