8. Top 5 Social Networking Sites Facebook Twitter Linked In My Space Stumble Upon
9. Facebook Statistics More than 500 million active users. Average user has 130 friends. People spend over 700 billion minutes per month on facebook. 50% of the active users log to facebook in any given day. More than 200 million active users currently accessing facebook through their mobile devices.
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11. New users are signing up at the rate of 300,000 per day.
12. 180 million unique visitors come to the site every month.
13. Twitter users are, in total, tweeting an average of 55 million tweets a day.
14. Of Twitter's active users, 37 percent use their phone to tweet.Source: http://www.huffingtonpost.com/