Google+ outranks Twitter as no. 2 social network after Facebook | PCWorld

Google+ outranks Twitter as no. 2 social network after Facebook | PCWorld:

Google+ is now the world’s second largest social network, outranking Twitter that comes in at the number four position. But both social networks are still far behind Facbook, which is used by more than 51 percent of the world’s online population, according to a new survey.