According to a 2011 Q3 Nielsen report, social networking accounts for 23% of time online with Facebook accounting for the lion’s share.  53.5 million minutes on Facebook in May 2011.  This report dovetails on the concept of social media as an important tool in business advertising. Social media app usage is up 30% from 2010. Over twice as many people over 55 visited social media sites using apps as last year.  This trend bears watching.

Nielsen Report