Skype-2
A few readers sent this in, when you call 1800FREE411 from Skype you can use their ad-supported service to make other calls for free. When you call it, it helps you look up a U.S. person or business from their directory service and then connects the call… And the directory service bears the cost of the call as it seems to be ad-supported. So you use SkypeOut to connect to the service, and the service to connect to the one you’re calling. [via] Link.