Cross referencing surname counts in Google+ with data from the US Census Bureau, Paul Allen, founder of, has made estimates about Google+'s current and projected growth.

The social network grew 488%: From 1.7 million uses on July 4 to an estimated 10 million users on Tuesday July 12.

If the growth continues ax projected Google+ is to reach 20 million users by this weekend: a 1000%+ growth.