OnGuardOnline.gov provides practical tips from the federal government and technology industry to help you guard against Internet fraud, secure your computer and guard your personal information.  For parents, they have an online publication,  Net Cetera, that details important information parents should share with their children about using the Internet safely.

StaySafeOnline.org provides educational materials and information on a broad range of Internet safety and security issues. For teachers, there are lesson plans and activities at targeted grade levels. Students can learn about trusted sources, protecting the privacy of their information, and how to be a good digital citizen. Emphasis is on the 3Cs – cybersecurity, cybersafety, and cyberethics.

Older students learn about malware and botnets, spam and phishing, hacked accounts, id theft and fraud, online shopping, and cyberbullying.

Check out comics and videos on social networking, cyberbullying, as well as real life stories that illustrate the importance of practicing Internet safety. Also available are several games and quizzes to increase awareness.

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Web Wise Kids is about empowering today’s youth to make wise online choices.  Through state-of-the-art computer games–based on real-life scenarios–and community and youth leader involvement, and parents, Web Wise Kids creates a safer, more friendly internet experience.

From site:

The National Center for Missing & Exploited Children, (NCMEC), is a private, (501)(c)(3) nonprofit organization which was created in 1984. The mission of the organization is to serve as the nation’s resource on the issues of missing and sexually exploited children. The organization provides information and resources to law enforcement, parents, and children, including child victims, as well as other professionals.

NetSmartz Workshop is an interactive, educational program of the National Center for Missing & Exploited Children® (NCMEC) that provides age-appropriate resources to help teach children how to be safer on- and offline. The program is designed for children ages 5-17, parents and guardians, educators, and law enforcement. With resources such as videos, games, activity cards, and presentations, NetSmartz entertains while it educates.