http://www.netsmartz.org/

Grade Levels:The NetSmartz Workshop is an interactive, educational safety resource from the National Center for Missing & Exploited Children^® (NCMEC) and Boys & Girls Clubs of America (BGCA) for children aged 5 to 17, parents, guardians, educators, and law enforcement that uses age-appropriate, 3-D activities to teach children how to stay safer on the Internet.

Cost:  Appears to be free - can be downloaded to computers for classroom presentations

Topics Covered: Information appropriate to share in chat rooms, who to include in your groups, what to watch out for with others sharing sites.

Comments about Curriculum:  Would need to choose appropriate activites for specific grade levels, but does hit on some of the main items students that need to be addressed with students.