[oyeanuj]

We are building something like that, for all the fields out there. We've built an interest graph that allows for it to the targeting to be hyper-relevant that really gets at exactly what you are interested in (so what era/region/aspect of history rather than just 'history').

We are launching our beta in the next couple of months, but until then you can sign up on http://shuffle.do to stay tuned. Happy to answer any questions.

[godelski]

How are you keeping the community focused? And how are you dealing with armchair types? I don't expect you to ever get rid of them, and they can be useful, but is there a way to keep the real experts higher priority?

[oyeanuj]

Good questions! Highly simplified but when you come in, we ask you a few specifically-designed questions about what you are interested in, which helps us drill down into very specific interests. Through those questions, we can also recognize folks for whom that field/interest is a less serious pursuit.

And then when you post, you select the topic/community and our algorithm does the targeting/distribution accordingly. This keeps your feed hyper-relevant as the network grows.

We've studied different network and community dynamics, and taken them into account when designing Shuffle as our aim is to become the hub for all of the fields out there.