Be smart. Don't post information on any social-networking website that you feel is inappropriate. You want to keep certain bits of information private. If a social-networking website asks you to provide information that you aren't comfortable sharing, don't share it. If the website insists you share that information, don't use that service. It's as simple as that.
This is taken from "Blogging for Dummies" by Amy Lupold Blair and Susannah Gardner.
I thought it might supplement a lot of what people were saying when speaking out against Anne Rice's petition to Amazon about adopting an all "real name" policy.
Everyone has the right to privacy, and everyone has the right to choose whether they want to have a penname or not. Regardless of their particular role or background.
It doesn't make sense to deny the rights of a person in one area over another. Equal protections are key, and that's what makes this petition by Rice so troubling, among other notations.