As the Olympics get underway, fans have a lot of options to engage online. Many popular sites on the web are involved in a variety of ways. Google Google allows you to take a virtual tour of the Olympics in 3D . They recently released updates in Google Earth's 3D Buildings layer, which showcase Olympic venues (54 buildings). Models range from downtown event centers to ski lifts and spectator bleachers. The Official site for the Olympics uses the models itself.