I've been trying to implement this exact idea: http://www.blazingrails.com/ http://www.blazingrails.com/ Topics describe your interests, and you can subscribe

I've been trying to implement this exact idea: http://www.blazingrails.com/ http://www.blazingrails.com/ Topics describe your interests, and you can subscribe to multiple topics. The 'Best Posts' feed is a list of recommendations ranked by a combination of matching topics and points. The end goal is that you start getting a feed of only content you're interested in.