Google+ Surpasses 62 Million Users

Google+ is adding new users at a very rapid pace, and seems to have surpassed 62 million users, according to Paul Allen, who has been estimating Google+ usage since the summer of 2011. 


In the summer of 2011, Google+ users were unusually weighted in the direction of technology, especially software-related job titles. That might be expected for an "early adopter" product.
“Each week my team from elance runs hundreds of queries on various surnames which we have been tracking since July,” he says.  “We revised our model based on the actual user announcements made by Google on July 13th and Oct 13th.” Google+ subscribers
 
July 13 - 10 million
August 1 - 20.5 million
September 1 - 24.7 million
October 1 - 38 million (Larry Page announced "more than 40m users" on Oct 13th)
November 1 - 43 million
December 1 - 50 million
December 27 - 62 million
January 1 - 65.8 million (forecast)
February 1 - 85.2 million (forecast)