No governments, no banks, no rules.
FACEBOOK CREDITS A virtual currency that enables people to purchase items in games and non-gaming applications on the Facebook Platform. facebook.com/credits
LINDEN DOLLARS The unit of currency for all monetary transactions in
Second Life that can be traded for real world currencies. secondlife.com/my/ lindex
Virtual gold is the currency of World of Warcraft ( WOW), a massively multiplayer online role-playing game (MMORPG).
PAYPAL A global e-commerce business allowing payments and money transfers to be made through the internet.paypal.com.au
BITCOIN A decentralised, peer-to-peer digital currency.bitcoin.com.au;https://en.bitcoin.it/wiki/ FAQ