Not everybody relishes the wild-west nature of the Internet.
Sure, it's fun to see old friends on Facebook, but how much information on you is being collected? Short answer: a lot.
Tyler Cohen Wood works for the Department of Defense on cyber-security and social media issues.
She offers advice on how to protect your online activities in her book Catching the Catfishers: Disarm the Online Pretenders, Predators, and Perpetrators Who Are Out To Ruin Your Life.