So far, I find two, for example, http://www.mylife.com/showRegistration.pub &
http://www.spokeo.com/ hoping to come up with list of sites to make easy in finding my
friends,colleagues & acquaintances.
I dont know if those require payment to use.I would be very careful about paying any fee to some of these sites as you will probably not get your moneys worth in terms of results.I would say that Facebook is your best choice.