I used google pay per click and found it really good for a little while....but then for some reason my budget per day was disappearng very rapidly with no sales. I can only assume that some competitor was clicking my adverts and draining my daily budget so that my ad disappeared and theirs was left. This is a known behavour called click fraud and I really dont know how to avoid it. I asked google if they could track the IP addresses of the people clicking my link but they said this was not possible and while 'they had secret methods of trying to prevent this happening' they could not guarentee it. And I guess it isnt really in their interest as they get paid per click! I think you should give it a go but be very wary...use your site stats if you can to see how many visits you are getting and how long they are staying on your site to be sure it isn't just a nasty person clicking away all your money. Once I have full access to my web code, I might be able to see where the clicks are coming from and if I find out who is cheating the system - watch out! :)