Have you seen any social network related to payment/money transfer? Social networks that are related to EFT, money exchange, credit-based loyalty promotion and vice versa? If the answer is positive, please tell the name of them.
closed as not constructive by phwd♦ Mar 11 '12 at 16:21
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Theres pygg (pygg.co/). Its "a social way to pay your friends". It works with the Twitter API. Unfortunately its currently only in Australia.
It was featured in a sitepoint podcast a couple months back: http://www.sitepoint.com/podcast-141-pygg-with-andy-white/.