FollowGoogle+ hit 20 million unique visitors this week, and the company launched a mobile app. The stats are impressive, but the new social network has room to grow in catching up with its massive competitors Twitter and Facebook.
Early adopters of Google+ are captivated by the network’s growth, as many tech elites — including Mark Zuckerberg, Robert Scoble and Kevin Rose — have amassed large followings in just weeks.
