It seems like popular websites like Wikipedia and Flickr are ranked slightly higher in the new results compared to the old. Perhaps it's a more crowd-sourced ve

It seems like popular websites like Wikipedia and Flickr are ranked slightly higher in the new results compared to the old. Perhaps it's a more crowd-sourced version of pagerank that they have been training/testing. Since they have been HTTP re-directing results for the last 5 months, they could be using this clickflow data to adjust sites ranking according to users behavior on the search result page itself.