Another month, another new bitcoin-trading exchange. The New York State Department of Financial Services said in a press release that it had approved a new virtual-currency license -- known as a BitLicense -- for the U.S. unit of London-based Bitstamp. Bitstamp USA Inc. is authorized to offer buying and selling of bitcoin and other virtual currencies, for U.S. dollars and vice versa, according to the press release. The approval comes less than two weeks after the state regulator approved a license for another operator, Tagomi Trading LLC, and shows that bitcoin exchanges aren't waiting for a rebound in prices for the ... (full story)