Flattr tried to do something like that, but they're not big enough to break chicken-egg problem.

Google already owns a lion share thanks to adsense and doubleclick. If I understand correctly this lets you pay to disable Google's ads, so it's pretty neat: I've heard many people say they'd rather pay than be the product, so now they can, on millions of sites already (apart from that "Contributor is not yet available in your country." :)

In no way does this stop people being 'the product'. For that to be true it would have to stop google amassing personal data on you, and stop them deliverering advertising to you everywhere.

This goes nowhere significant towards that goal.