I am just wondering how many datacenter google has it?. Are many or only few. There should be many since some of them goole updates affect differently for for some of the webpages such as PR.
Google is all around the world and I've heared they have more than 100 servers and I think they are in all different datacenters. Imagine what Google is, it caches almost the whole internet, think about it, it requires ALOT of servers