The term broker derives from the french word ‘broceur’ that means small trader. Today the brokers are agent working in some industry fields but this word is famous especially in the market where the broker is one of the most important role, an intermediary from the market and the traders. Brokers in fact are those that have and give information on the market conditions, or on the prices of the products. Today is unthinkable to work in the trade system without the support of a broker. In fact all the Forex Trading are usually done by the brokers, that are people or platform that act as intermediaries among the trader and his trade and the market. In fact ‘normal people’ are not allowed in operate directly on the market, but only broker can. Today there are a lot of on line platform that act as brokers: they are the on line forex broker. These platform have the quality to show time after time what happened on the market, so that the trader can track and monitor prices, statistics, purchases, gains, losses and so on. Of course, all the licensed platforms are listed, so that investors can chose their own on-line broker without meet with not authorized brokers. This is a very important point as the open market is a very interesting world, but is also a good way to dupe the simple person or those that expose themselves to the market for the first time. The best broker platform always advises all the investors not only of the possibilities of gain, but also about the risks of investing.