The link to the full story is here
Last year, many people dismissed Google's Google+ social network as a "virtual ghost town." That was then. This is now. According to GlobalWebIndex, Google+, with 343-million active users, has become the second largest social network globally. As Vic Gundotra, Google's senior VP of engineering, observed, "That is a lot of ghosts"
Facebook is still the biggest of the social networks by a large margin. By GlobalWebIndex's count Facebook has almost 700-million active users. The research group defines active users as those who used or contributed to a site in the past month
All three of the major global social networks, Facebook, Google+, and Twitter are growing by leaps and bounds. "Data collected in GWI.8 (Q4 2012) demonstrates the continued shift in usage from localized social platforms to global ones with huge growth for Twitter, Google+ and Facebook. The fastest growing network in 2013 in terms of “Active Usage” was Twitter which grew 40% to 288m across our 31 markets (approximately 90% of global Internet population). 21% of the global Internet population now use Twitter actively on a monthly basis. This compares to 21% actively using YouTube, 25% actively using Google+ and a staggering 51% using Facebook on a monthly basis."