What to do with this site? Use it in conjunction with my previous post As Seen on TV: Media Messages UnMasked from my Teach with Picture Books blog. That post discusses how advertising's main purpose is to persuade consumers; it persuades them to think a certain way, act a certain way, and buy a certain product. And it's not always 100% truthful.
If you teach persuasive writing or critical thinking, definitely give these resources a look.