Arbitrage simply mean earning from difference in exchange rates from a cross section of bitcoin exchangers globally. Or simply put, buying low from exchanger A and selling high at exchanger B.
This is completely logical, legal and 100% risk free.
Although one limitation is in the painstaking effort to search and compare rates from several exchangers.
Now at https://bitbays.com/?r=183303, with just only 3 steps you will continuously and automatically search and execute trades for daily abritage gain like me. See my snapshot earnings on just 0.0004 bitcoin http://oi68.tinypic.com/295s6k2.jpg
Stanley 08023443328