I know some of you have kids who are either using Facebook or asking if they can. So I want to introduce you to my friend Caroline Knorr (above). I’ve known Caroline since we both worked together at PC World too long ago to admit. She is now Parenting Editor at Common Sense Media and has made a terrific video that explains to how best to take advantage of the Facebook privacy settings to let a teen have fun –without getting into too much trouble — on Facebook. I couldn’t embed her video but just click on the image above to watch. Tell her I said “Hi.” while you are there.