I think the most important thing I learned from reading these articles about internet safety is how important it is to educate students properly about the lasting consequences of their actions online, especially in posting media.
I really liked this website insofar as teaching about how to be careful. I watched the video on how to change your privacy settings on Facebook.
I think if you model appropriate behavior for your students (creating a safe non-searchable) class website for instance, you will be able to help the students see what sort of precautions need to be taken.
