Innocent Man's Life Destroyed by Anonymous Topix Poster
Georgia father was besieged by startling, unfounded allegations online.
Courtesy of Gene Cooley
Gaga's Twitter Hacked: Are You Next?
If it happened to Lady Gaga, it can happen to you.
Lester Cohen/WireImage/Getty Images
Review: Tools for Monitoring Your Kids' Facebook Use
An in-depth look at three Facebook monitoring solutions.
Stay Safe Online
5 Ways to Handle and Prevent Cyber-Harassment Tips from online security expert and "20/20" contributor Mary Kay Hoal.
Cyberbullying: What It Is and What to Do About It Jamey Rodemeyer's suicide created an uproar. Will it help?
Would Your Child Pass a Social Media Background Check? Employers can hire companies to check Facebook, Twitter accounts.
'The Bachelorette' and Online Security Online dating is like hiring: There's no substitute for face-to-face interviews.