Soon Facebook will allow search engines to crawl its member profiles, making a wealth of previously limited information available to the general public.
Today they make it possible to edit what they call your Limited Profile. My choice is to limit everything except my name and main photo.
Unless you want long lost friends to find you through Google, be very careful about what you allow people outside of your Facebook network (meaning anyone on Google) to learn about you. It could be a hotbed for people who have gotten ahold of your Social Security Number to know way too much about you for fraudulent purposes.
Whether or not you’re an active Facebook user, if you ever entered any contact information about you make sure to log in to Facebook right away to limit what the search engines can index.