Thib writes "A study from the Pew Internet and American Life Project reveals that the majority of teens pay attention to what they are revealing about themselves in their online social profiles. For instance, while many routinely use their first name or include a picture, 'fewer than a third of teens with profiles use their last names, and a similar number include their e-mail addresses. Only 2 percent list their cell phone numbers.' The study comes to light just as state legislatures once again begin to mutter about the dangers of online predators. From the article: 'According to Pew, 45 percent of online teens do not have profiles at all, a figure that contradicts widespread perceptions that the nation's youths are continually on MySpace.'"