I built what Hivemind is aiming to do about 3 years ago and eventually lost out to GR and shut it down.

But, now I've turned it back on. You might like it. Please send feedback!

http://feedeachother.com (still working out a few kinks, so be gentle)

I like its look, but I wish newsblur didn't require a username or would just let me use my e-mail address. I failed the "new character" test. Once three or four don't work, I really want you to just offer me one. Or not require one in the first place.