Excellent article from Clive Thompson in the July issue of Wired about the success of Twitter and how/why those constant-contact media applications create a sixth sense he calls social proprioception.

Clive explains that, although most of the Twitter messages, taken individually, seem pointless, being constantly ping about what your friends are doing, creates a sort of collective consciousness, a subliminal sense of coordination similar to proprioception, your body's ability to know where your limbs are.

Read the article here: http://tinyurl.com/2np4um