Pew study : 39 % of teens say they exchange text messages annually . Study finds that 63 % of teens say they never exchange e-mail . Teen girls ( 78 % ) 39 % of teens from households earning $ less than $ 30,000 or more have a cell phone .
Pew study : 39 % of teens say they exchange text messages annually . Study finds that 63 % of teens say they never exchange e-mail . 39 % of teens from households earning $ less than $ 30,000 or more have a cell phone .