The value one country’s money has relative to another countries money is constantly in flux. You can profit by exchanging currency at the right times.
Oanda has a free currency converter and both a pretend and real currency trading platform. It also give advice on how to buy, sell, and trade currency.
You can also use the FXCM or the Currency Exchange Market Simulator to practice before doing the real thing.
*Know the lingo – Forex is a term commonly used in currency trading that means foreign exchange.