Consider anything you do as public.
It’s that simple. I don’t think you will ever again worry about your social network content if you treated all the content you post to social networks as public.
Facebook keeps changing it’s privacy settings. Google creates Buzz and gives away loads of information. People post things publicly that were considered private by the author… you won’t have to deal with them any more.
Just consider everything public while on social networks. Period.
Akshat Rathi 