I use twitter, and I like tweetdeck, sort of, because I see tweets in real time even if I'm on another application. I "watched" a couple world series baseball games like that.
Anyway, I set up columns to follow things I'm interested in, and a couple of things I keep coming back to are the #amwriting & #amreading people. I assume these are writers and readers. I like doing both, (but I'm only really semi-good at reading) so I follow them as the mood strikes.
My observation so far (completely non-scientific with no attempt at verification) is that the #amwriting people tweet a LOT more than the #amreading people. I suppose that's reasonable.