Jon Matonis' latest in Forbes:
Bitcoinica Registers in New Zealand for Bitcoin Margin Trading
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http://www.forbes.com/sites/jonmatonis/2012/04/21/bitcoinica-registers-in-new-zealand-for-bitcoin-margin-tradingFirst of all, anyone can trade — with just $1 or ฿1. As with forex trading, there is no commission — only the bid/ask spread. Customers place buy or sell orders with a leverage variable selected anywhere from none to a factor of 10:1.
I sure hope people not already familiar with FOREX will understand that bitcoin exchange rate volatility + leveraged trading = getting zhoutonged
(zhoutonged described here:
http://www.youtube.com/watch?v=kdvTkddp1F0 lyrics are not necessarily safe for work)