[itcmcgrath]

Yes. It is like massively decentralized news aggregation.

You can just follow any-old tag and see what comes up, or you can try and improve the signal-to-noise ratio by following the people you generally enjoy reading and create specific lists.

I've also found it helpful in big conferences. at the WCC2010 I switched streams (there was 16) a few times because the quotes coming out of other sessions hinted that the other one was more interesting/relevant to me.

[danilocampos]

...if you want it to be.

What it actually is is plumbing that you can configure more or less how you'd like. So it can be what you described. Or it can be any number of other things.