Larry Rosen, professor of psychology at California State University-Dominguez Hills, has long studied "the Net generation," the first to have grown up with the Internet, not to mention cellphones. In Me, MySpace and I: Parenting the Net Generation (Palgrave Macmillan), he helps parents understand social networks. His advice: Talk to your kids, learn the technology and don't panic. USA TODAY's Janet Kornblum spoke with the author.