Building a Billion User Load Balancer [video]
Map of Google data centers: <a href="http://imgur.com/l1dDdQe" rel="nofollow">http://imgur.com/l1dDdQe</a><p>Map of Facebook data centers and PoP: <a href="http://imgur.com/dek8ESX" rel="nofollow">http://imgur.com/dek8ESX</a>