Google Caffeine is finally official, and while people have been speculating for months about whether or not it was live and on how many data centers, we now know that it is a done deal across the board straight from Google. Caffeine is not an algorithm change like the recent MayDay update, it is an indexing adjustment based on a need for speed that Google first identified on September 11, 2001. It has taken Google nearly nine years to perfect Caffeine, so you know that this is a major progression that will change the face of SERPs forever.