In case you thought the Kentucky bill to prohibit anonymous blogging was just a silly waste of time, you might want to look at how New Jersey is trying to do the same thing by using existing consumer protection law.
It's a lot like suing the phone company because someone called you and said something mean. If someone is really being hurt, there are already protections in place. We need to be very careful how we define our terms, though, so we don't wind up infringing further on political speech.