[img src="http://www.tailrank.com/images/logo.jpg" caption="" credit="" alt=""]
Wow - it seems like there are hundreds of these social news sites springing up. But this one has real promise. Kevin Burton's TailRank (now in public beta) filters news according to your interests and those of others:
TailRank is a social news recommendation system and collaborative filter. TailRank recommends global news but also allows the user to adjust the depth and scope of their query to help focus their results. Uue TailRank to share blogs, stories, or people and TailRank can start recommending other items you might find interesting.
Unlike other global systems (like Delicious, Digg, Blogdex, and Daypop) we provide custom ranking specific to the user. We're able to do this by allowing each user to share news and blogs with other members of the site. Once we understand your interests we can recommend other items which you might not have seen.
The killer feature here, as Alex Barnett points out, is that you can import your OPML file. Tailrank will then sort your feeds by relevance. I can't wait for a chance to try this out.