Interesting... especially since I consider paying for advertising "per click" fraudulent as well. In what other form of advertising do you get the brand recognition, message delivery, word of mouth, and all of the ancillary bits of advertising that actually makes it work completely for free? No other method. Because content producers and advertising companies in every single other medium understand how advertising works, and understand that only paying when the ad results in a direct IMMEDIATE sell amounts to them defrauding the content providers. I can get my message seen by thousands of users and only pay for a tiny little fraction of that? I can certainly see how that would be an ethical challenge for a company, wanting to get 90%+ of an advertisements benefit without paying for it, but it's pretty clearly unethical to rip people off in such a way.<p>Call me if you see a magazine, TV, or radio ad that was carried for free and agreed to only accept a payment when a customer shows up and specifically mentions the exact ad that inspired them to make the purchase.