teachers and blogs

When first hearing about Kathy Cassidy's blog, where she puts her students in videos on it, I was a little concerned. After reading it the past few weeks I have realized how cool it really is. I like the fact that her class is able to communicate and do things with other schools and classes all over the United States and even the World. I would enjoy to do something like this with my students when I become a teacher! I just wonder how the parents feel with their children being on the internet for all to see. I think its a good idea and all, but I dont want the world watching my child. Its sad but there are some creeps out there...