Delegative democracy is a form of democratic control whereby voting power is vested in delegates, rather than representatives. This term is a generic description of either already existing or proposed popular control apparatuses. http://en.wikipedia.org/wiki/Delegative_democracy
There's an interesting description of a Delegative Democracy in L Neil Smith's Probability Broach alternate-Earth. Each person has voting power, but can delegate it moment by moment, issue by issue, to anyone else.
- that feature is called "Liquid Democracy" - http://www.shareable.net/blog/liquid-democracy-the-app-that-turns-everyone-into-a-politician
- Apr'2014: Pia Mancini started the Net Democracy foundation, a not-for-profit that explores ways of improving civic engagement through technology. The foundation’s first project is something called DemocracyOS, an online platform for debating and voting on political issues, and it’s already finding a place in the world...Ultimately, though, the biggest challenge may simply be getting people to use the software. This will all sound familiar if you’ve followed the German Pirate Party, which has its own open source application called Liquid Feedback that allows members to vote on ideas and even delegate their votes to other members. Unfortunately, Der Spiegel reports, Liquid Feedback has been something of a bust.