MediaPost
Publications - For Teens, IM Beats E-Mail - 12/11/2006: "The report, based
on a survey of 1,513 IM users, also found that 72% of teen respondents send IMs
more than e-mails. In addition, 20% of teens who use instant messaging say they
can't imagine doing without the service. What do teens use IM for? More than
half (56%) of teen respondents use IM services to share photos, while 33% share
music and video via IM."

These are the college students of next year.