In 2009 October Facebook unique U.S visitors are 97.37 million. In 2010 it went to 151.13 million U.S. unique vistors. That’s a growth rate of 55.2% year in year.It was the second most visitors,In first place it was google.
World is changing already This december month all Goggle employee are getting a 10% flat hike ..you know why? Becoz its top brass is leaving to join Facebook. In last 2 quarters they have already lost good percentage of employee to Facebook only. Friendfeed is another website that was all by ex google employee. It is quite natural you cannot be king with technology all the time, there is always the possibility of people branching out to do on their own or your competitor taking them with more. Good for us anyways. We have multiple options