I can see this happening hand-in-hand with the ad-pocalypse. Have a micropayment system associated with ad blockers. It can use the same revenue flow as ads.

For every thousand (suppressed) impressions, pay a dollar to the site. Sites, who are now actively blocking ad blockers, can stop blocking and get similar revenue. Users, who do not want ads, can get that experience without the guilt associated with freeloading.

All it takes is for one major browser vendor to take the first step.

Mozilla, are you listening? Microsoft, this is how you undermine adwords.