Reference
These are the books and Web site i get my information.
Protect Your Digital Privacy - survival skill for the information age, Glee Harrah Cady and Pal McGregor
Internet & Computer Ethics for Kids, Winn Schwartau
http://www.privacy.gov.au/internet/internet_privacy/index.html
http://www.microsoft.com/windows/ie/using/howto/privacy/config.mspx
This is a list of a fews sites that worth visiting. These pages are well-made or "centrally loacted"(in the topical sense) and therefore are usually current and always informative on digital privacy.