Teenagers will freely give up personal information to join social networks on the Internet. However, a 2007 study by the Pew Internet and American Life project found that most of the 55 percent of teens who place their personal profiles online take steps to protect themselves from the most obvious areas of risk. Parents, teachers, and librarians should welcome the news that most teens are well aware of the risks they face when they present themselves online. Nevertheless, adults still have a role in raising awareness of these risks, given that eight out of ten teens and parents agree that teenagers need to be more careful about the information they provide online. This article presents several tips for school librarians on what they can do to ensure that young people experience both a safe and enriching environment online.