https://cointhink.com/arbitrage/btcusd https://cointhink.com/arbitrage/btcusd charts mtgox/btce/bitstamp and calculates the amount of arbitrage between the exch

https://cointhink.com/arbitrage/btcusd https://cointhink.com/arbitrage/btcusd charts mtgox/btce/bitstamp and calculates the amount of arbitrage between the exchanges. It uses the orderbooks of each exchange to tally the amount available for arbitrage.