The Forex markets are the largest traded markets in the world.  Over $1 trillion is exchanged every single day on the Forex markets.  News seems to break just about every minute, which in some way will effect a currency, thus giving traders a money making opportunity.  This is why Forex News Feeds are so important.  You as a trader want to have up to the second information so you can quickly trade on it before it spreads throughout the market.  Unlike other markets Forex is more than just an investing market.  People everyday travel, needing exchanged currency, meaning that there are more profit opportunities for the traders.