OnGuardOnline.gov: Practical tips from the federal government and the technology industry about Internet fraud, securing your computer, and protecting your personal information.
StaySafeOnline.org: Simple steps, practices and resources to protect against cyber threats.
Don't Believe the Type: Information from the National Center for Missing & Exploited Children about understanding dangers on the Internet and simple rules to avoid them. (Note: This web site is aimed at teenagers; however, the information and advice generally apply to people of all ages.)
Deter-Detect-Defend: The Federal Trade Commission's (FTC's) web site on identity theft.