> What alternatives? I’m not claiming any alternative exists right now. I’m saying that the less efficient Google is at converting dollars paid by advertisers

> What alternatives? I’m not claiming any alternative exists right now. I’m saying that the less efficient Google is at converting dollars paid by advertisers into visitors, the greater the pressure from future (unknown) technologies that eradicate the inherent inefficiency in Google’s model. If I knew exactly how to capture Google’s ad revenue, I would be starting a company rather than writing comments on HN.