A coworker was contacted by YP and became interested in advertising there. I asked why a potential customer would search for services on a special website rather than just using Google. She said she wasn't sure, but we would be guaranteed a certain number of calls for a reasonable introductory price. I agreed to give it a try.
During a month of advertising there, we received 0 phone calls. As we were getting ready to cancel the service, I went on their website and it showed about 60-70 people had supposedly tried to call us through the service, including some on that very day. Since it showed their phone numbers, I tried calling them. Every single one was a disconnected number!