I have been working at it with http://hubski.com. In short, you choose people to filter content for you based on what they post, and what they share. You in turn choose what to pass on to those who follow you. It's been working pretty well.

I'm still working on recommendations. There are suggestions once you follow someone. It's a good way to get started, but the best way to get good content is to hand pick folk based on what they have shared.