I recently discovered several websites offering in-brower 3D model viewers that can be embedded into any webpage. One such site is Sketchfab and through their service you can take an interactive tour of two of our more recent 3D models below. Using your mouse you can rotate the model as well as pan and zoom in/out. This can be a great way to present a digital model to those who might not have the specific software required to open the original file.
Note that from my experience so far this works best in Google Chrome.
Mouse navigation controls: