http://fintechnews.ch/1763/blockchain_bitcoin/ecurex-releases-110-page-digital-currency-report/
It covers many topics like fees, merchants, etc Seems interesting and we might learn something
QuoteWhile a currency should typically satisfy the three needs as of being a medium of exchange, a unit of account, and a store of value, reward and loyalty program should be the fourth need.
:P
Interesting, thanks Akado.