IF YOUR CHILD has just committed to a college, congrats ... and prepare yourself for a new online adventure. Just as your kid will communicate with future classmates over social media, you may soon be initiated into the strange new world of the parent Facebook group. Almost every U.S. college has at least one of these private groups, which are often created by the institution itself. “One of the reasons is to reduce helicopter parenting by giving the parents who want to get overly involved in their child’s lives an outlet,” says Nancy Darling, a professor of psychology and business at Ohio’s Oberlin College and editor in chief of the Journal of Adolescence. “It gives a place to vent about emotions without burdening the child.” Darling knows this from personal experience. Her son had a chronic illness when he went away to college; a parent group helped her deal with her own anxiety. These groups also allow parents to exchange information that can ease their child’s life on campus. In some cases, though, parents can go too far. On a Facebook group for people who are, like me, the parents of a student at Virginia Commonwealth University, one parent asked: “Does anyone know where my child can buy stamps?”