Watch out for Intelius - I used Intelius to get a phone number of a person I needed to call and they offered this search for $0.95 ( half off)... little did i know that I was actually subscribing to their monthly indenity service ( had no idea, it wasn't obvious) probably some of that small print.
Any was I called them and the said that they would stop the subscription, but the $19.95 they took out of my checking account was their's and they were going to keep it. I said that I was willing to pay full price for the phone number I wanted ($1.95) and they could reimburse me $18.00... but they said no too bad you signed up for it so we are keeping the money.
Watch out for Intelius!