Google Fast Cash seems like it is to good to be true and when something is to good to be true it usually is not true. Google though is a very well trusted site so it brings the question to mind that Google would be your employeer and would be able to trust. Also it had been shown on many sites like ABC, Forbes, CNN and USA Today. Also it cost two dollars for shipping and nothing else it might help make it seem more truthful. I just don't know about somethings on the internet.
have you tried visiting that site? i did find one and i dont remember it pretty well but they had the idea of creating money online real fast and they claim that they are not associated or affiliates of google plc the search engine..so its confusing..