This sounds like a more complicated version of disqus. Disqus lets you integrate the discussion thread on your website. And also agregates some recommended content on their own site. They even do voting. So it is basicly all there.

I am currently working on a feedly alternative that also integrates the ranking of the aggregated site and design wise looks a bit more like Medium. But the main Goal would be to implement something I would call a smart group courating feature. I am yet undecided if I really should integrate dicussions. They seem like a lot of work with little reward.