Businessweek – Google Inc. is adding 625,000 new users a day to the Google+ social-networking service, which may total 400 million members by the end of next year, according to independent analysis of its growth. Facebook has more than 800 million users. Google+ has apparently just passed the 62 million user mark.
Google can continue to integrate Google+ into its other products and word of mouth will continue to build. Most importantly, 700,000 Android devices are activated daily and this will become a very significant source of new users for Google+. That number will also grow next year.