Robin Good: Sketchfab is a web-based service which allows you to publish, embed and share fully interactive 3D models online without the need to install any special software or browser plugin.
Sketchfab is like a YouTube for 3D interactive models.
To use Sketchfab you only need to create a free account and upload a 3D model file in one of the 25 supported formats. After processing, standard technologies like WebGL and HTML5 are used in your browser to display your 3D models in real-time.
The web-visualized version of your 3D model can then be made public and can be embedded in any web site or blog. You can also easily remove the models you uploaded anytime you want to.
Check this example: http://skfb.ly/kihgfe1a
Free version available.
Plans and pricing: https://sketchfab.com/upgrade
Find out more: http://sketchfab.com/
Via Robin Good