Phineas and Ferb are popular Disney channel characters. They have a video to help students learn internet rules and online safety tips.
Sid's Online Safety Guide - I use this site with my 3rd graders. They needed to read more than the site speaking to them. After each challenge, they received a letter to be used at the end to create an important phrase. They definitely got the message!
I Keep Safe - The 2nd and 3rd graders went to this site. They liked the games and there are two links to other good internet safety sites:
Net Smartz Kids - the popular site for my student - I don't know if they got the message without discussing the sites before, during or after playing.
McGruff Games - this is more general child-safety. There is an internet safety site as well.
BrainPop Jr Internet Safety - great site for younger, just emerging online students.
Cybersmart - great site for students of all ages, teachers, and parents.
Through the Wild Web Woods - my 4th graders liked this site! They go through the wild web woods to learn about internet safety, find clues, and reach different levels.
Webonauts Internet Academy: get your web license - question/answer about internet
How do YOU stay safe online?