I think you should first focus on building big-enough community of people who'll create high quality, non-biased, not-spammy summaries. Without it you won't have anything to monetize. Eranation's ideas were interesting (in the area of financial incentives you could experiment with Mechanical Turk, maybe GitTip, MinuteBox etc. as well as BitCoin payments). However you also should check for other, non-financial motivators for creators. I guess that many bloggers and other people trying to build their online brand would be interested in it for clicks, social shares, Whuffies, Klout score impact etc. The another option worth testing could be some kind of intelligent gamification of the process. In that case browser extension would be handy as it could provide all the necessary tools like author profile, sharing buttons and so long. Good luck - I really hope to see your button everywhere soon, as it's great idea.