July 13, 2011
Google+ (Plus) may already hit 10 million registered users and is expected to hit 20 million users by this weekend. But it’s still a long way off from Facebook’s 750 million registered users.
If Google were just counting on its estimated Gmail subscriber base, it won’t catch up with Facebook at all. But perhaps the bigger source of sign-ups will come from people who use Google search where people all over the world key in more than one billion searches a week.