You can find more information about it here as well: http://research.microsoft.com/users/tyliu/files/fp032-Liu.pdf I think it's a neat idea..Kind of like Alexa and Pagerank combined. Looks pretty cool we'll see how it does once it's released!
Actually I don't like the idea, although it is good way to see what people really want on the web. One of the main factors in BrowseRank is time spent on the site which is not good. Just look at comparison table in this document http://research.microsoft.com/users/tyliu/files/fp032-Liu.pdf Some websites are created to be time consuming (watching video, playing some MMO game... etc.) and they will rank high with BrowseRank because you are forced to spend long time on them. And they will have secondary benefit because of this: Lot of players spent hours on the games or watching videos, meaning that such websites will be going up, while some really important websites with valuable information will go down because you do not need lot of time to get the info. Example, nobody spend lot of time on Wikipedia or Google. You just type what you need, find it and go away. But lots of teeagers spent hours clicking on applications on MySpace and Facebook As I see it, lot of our websites with content that do not consume time will be downgraded. There is also aspect of declaring sites as spam. And many sites will suffer from it, just because some loser clicked "report site" or something that will be integrated into IE