The purpose of this site is to help children learn how technology affects their private life. There are lesson ideas and suggestions. You can download the PDF versions and use the lessons and worksheets.
This site helps everyone understand Social Networking Sites. There is a Graphic Novel, Social Smarts: Privacy, The Internet and You, which I was able to download into each student's computer where they read it and then in groups answered questions and critically analyzed the scenarios that were given to them. I was able to incorporate this lesson with the lessons and interactive games from the website I mentioned earlier, Media Smarts.
http://www.youthprivacy.ca/en/teachers.html