Microsoft has put together a 10 minute video that details a number of its data centers.
Some of these Data Centers are used for services like Hotmail, Xbox LIVE and Bing.
It’s a simple but pretty cool video that gives you a peek behind the infrastructure that provides the services you take for granted every day.
Microsoft GFS Datacenter Tour (http://www.youtube.com/watch?v=hOxA1l1pQIw#ws)