The Verge has an interesting article about the strange new world of body hackers. These techno-libertarians incorporate cybernetic implants into their bodies essentially becoming cyborgs.
"At its simplest, a cyborg is a being with both biological and artificial parts: metal, electrical, mechanical, or robotic. The construct is familiar to almost everyone through popular culture, perhaps most spectacularly in the recent Iron Man films. Tony Stark is surely our greatest contemporary cyborg: a billionaire businessman who designed his own mechanical heart, a dapper bachelor who can transform into a one-man fighter jet, then shed his armor as easily as a suit of clothes."