Useful list from Deb Ng on the Kommein site of tips about social networking. No harm for some adults to review them either. I remain astonished at what people choose to share, and how trusting some are.
OK, so you and I can read this. And then what? Why not find several ways to share it? Email to students, put on your school/library website with other resources on online safety, make a few points into a library poster (that you don't display forever, because then it becomes invisible...). This is as much a wakeup call to me, to use all this stuff I am finding as much as possible.