The internet: a new nervous system for humanity.
A new way to think of technology integrating with the human physical world: Michael Chorost wears a cochlear implant and lives this reality daily
http://www.amazon.com/gp/mpd/permalink/mHSGK930CX069/ref=ent_fb_link
http://www.youtube.com/watch?v=utNHl6AQqTA
The first chapter of his book can be read here.