Ask PG: how about using this model for HN monetization?

www.ligertail.com

hybrid of digg and adwords.

if you have something to share, you can see the analytics for each piece of content and the spot it occupies. based on that data you can choose to place your content anywhere on the site - bidding against others.

once submitted, the community votes on the content's quality.

in theory, the system can be applied to any entity with traffic (hn, digg, facebook, ny times, google).