In addition to Bing Maps, NORAD is also using a new open source, WebGL-based, 3D globe called Cesium: http://cesium.agi.com/2012/11/30/NORAD-Tracks-Santa-Tech-Preview/

This is one of the most significant uses of WebGL to date and will hopefully do a lot to increase awareness of the technology.

Disclaimer: I work on Cesium.

where I momentarily stop lurking to show off my low UID? Slashdot will always be part of my geek heritage, but all I can offer in return is to say "Thanks".