Martha Irvine

A new report from the Pew Internet & American Life Project finds that 78 percent of young people, ages 12 to 17, now have cellphones. Nearly half of those are smartphones, a share that’s increasing steadily — and that’s having a big effect on how, and where, many young people are accessing the Web. The survey, released Wednesday, finds that one in four young people say they are “cell-mostly” Internet users, a percentage that increases to about half when the phone is a smartphone. In comparison, just 15 percent of adults said they access the Internet mostly by cellphone....

CHICAGO — Teens don’t tweet, will never tweet – too public, too many older users. Not cool. That’s been the prediction for a while now, born of numbers showing that fewer than one in 10 teens were using Twitter early on. But then their parents, grandparents, neighbors, parents’ friends and anyone in-between started friending them on Facebook, the social networking site of choice for many — and a curious thing began to happen. Suddenly, their space wasn’t just theirs anymore. So more young people have started shifting to Twitter, almost hiding in plain sight. “I love twitter, it’s the...