I want a search results page similar to the "Priority Inbox" we got recently in gmail. Set sane defaults and let me override them with "Important/Notimportant"

I want a search results page similar to the "Priority Inbox" we got recently in gmail. Set sane defaults and let me override them with "Important/Notimportant" buttons (or thumbs up/down or whatever) next to results. Let it learn what I think is a good result for my needs. If you make it a little bit social, make sure you weight other people's opinions by how much they agree with my own in other areas (making it harder for sockpuppets to muddy the waters)