Google’s not-so-very-secret weapon 
One estimate pegs Google owning almost half a million servers distributed in 25 locations throughout the world.
http://www.iht.com/articles/2006/06/13/business/search.php

One estimate pegs Google owning almost half a million servers distributed in 25 locations throughout the world.
http://www.iht.com/articles/2006/06/13/business/search.php