More than one-quarter of teenage cell phone users have gone online with their devices, and online usage is greatest among students in households with less than $30,000 annual income, according to the Pew Research Center’s Internet and American Life Project, released in 2010. While that’s based on 2009 data, a May 2011 Pew survey of American adults revealed that more than one-third own a smartphone, so it’s likely teen use has increased also.


