Online networking in libraries

I've been reading about online social networking at libraries, with an emphasis on MySpace. Despite a few drawbacks, overall I think it is an excellent idea. It is a good way to reach many people and particularly teens with news about library events and resources. There are so many safeguards in place now that I don't think there is any reason for librarians or parents to worry. I have seen some great library MySpace pages that exceeded what I thought they were capable of. And of course, there are other networking sites and programs that should be used by libraries as well.