I have one suggestion that would possibly help: separate out "saved" versus "up-voted". For me, I rarely want to save something but I would love to go to the new page and up-vote more interesting stories to get rid of the noise. But maybe that's just me--I'm also the type who never submits anything unless I want to see the discussion on it. I'm guessing there's a lot of karma-whores and hence all the TechCrunch articles (I kid, I kid). Anyone have an idea for putting the incentives in the right place for submitting with that in mind? Fractional karma for submission up-votes?