I actually really like this idea in theory. I currently find most articles through either RSS (Google Reader) or Twitter because I know I can trust these people

I actually really like this idea in theory. I currently find most articles through either RSS (Google Reader) or Twitter because I know I can trust these people. If you can find a way to crowdsource who I follow on twitter so that it instantly reveals the "top topics" I'd sign on immediately. Perhaps an additional page on your site (I'm not on Facebook either so I can't check you out), where I can upload my twitter name and it sorts links shared by who I follow in order by the # of retweets, time, etc... Good luck!