Leading the increase in social networking usage were those over the age of 35, which grew nearly twice as fast as those 18-35 in the same time period. Only 18% of Internet users over the age of 35 used a social networking service in 2008 and by 2010 that number was up to 48%. The average age of an adult SNS user jumped from 33 years old in 2008 to 38 years old in 2010. This entire Pew Research Center Report is fascinating.
Social Networking By Those Over 35 is WAY UP!,