Hi there,
We recently launched
http://sketchfab.com, a free service to publish 3D models online without plugin, using WebGL and HTML5.
We support more than 20 native 3D formats, as well as normal maps, specular, lights, diffuse, transparency...
And you can embed our viewer on any webpage, and customize options like autospin, autostart, controls directly in the embed code. Here is an example below.
Give it a try and tell us what you think!
Best,
the Sketchfab team

Replies
It might be a big deal to some, but the models and textures are easily downloadable with little effort.
@throttlekitty Agreed for the "show more", we are working on it
Hi Eric, we just released a Maya exporter, check it out!
http://blog.sketchfab.com/maya-exporter