According to recently updated data from Nielsen, the amount of time that people from around the world spend on social networking web sites has increased by 2 hours per person each month from 2009.
The study asked participants in 10 major countries how long they spent each month on web sites like Facebook, Myspace, Twitter and Classmates Online. The average across the study concluded that each person spent around five and a half hours using such sites every month.
This included access both at home and at work.