Facebook has published a free, 20-page guide aimed at teens, their parents and teachers. It explains best practices for protecting their safety and privacy on the site. The guide goes into topics like securing access to Facebook accounts through proper password selection and use; avoiding falling prey to phishing and other scams; taking advantage of the site’s advanced security features. The issue is a critical one for Facebook, whose success depends in part on providing a safe experience for users, especially minors, who sometimes are victimized by predators.”]