The trophy is still up for grabs. On the one hand you have sites like Digg.com using the masses to socially engineer a news feed with the best stories. On the other hand you have (almost) completely computer created lists of news stories for your betterment. Which will end up better? Or will it be some kind of hybrid solution?
It's another of the many questions that will be answered over time, but for now you can get all the scoop from this
Wired article.
Warning: If you follow the link, you may have to fight with one of those nasty floater ads that makes you scroll to find the "skip this ad" button. Personally, I think it might be a mistake to sponsor such an ad. If possible, I'd avoid your company if it appeared on such an ad. Don't want to deal with companies that annoy their customers and don't mind being intrusive. How can you trust them? Shame on you for using them, Wired!