Consider how the following things change flows of attention, trust and participation in addition to “normal” exchanges of value: frequent flier miles, college degrees/grades/credits, five-star ratings, certifications, bus passes, votes, your eBay rating, scores, coupons, buy-9-get-10th-cup-of-coffee-free cards, gift certificates, lindens, Olympic medals, etc. (reputation graph)
MetaCurrency is a suite of open protocols for building a resilient decentralized currency network.
Alan Rosenblith Video-heavy Prezi presentation http://prezi.com/ijiokjbrolwo/metacurrency-introduction/
XGFL eXtensible Game Format Language (XGFL) XGFL is our implementation of open rules for the Metacurrency Platform. http://www.metacurrency.org/content/extensible-game-format-language-xgfl