Bitcoins are digital coins that can be sent through the internet. They are the first decentralized currency. There are a finite number of bitcoins - 21 million exist and they are predicted to last until 2140. The value of the bitcoin is constantly fluctuating and bitcoin technical analysis is required in order to know when to buy and sell this currency. There are currently several online currency exchanges available where one can exchange dollars, euros and other currencies for bitcoins. Bitcoins are traded primarily through bitcoin brokers and reliable Forex brokers that offer bitcoin trading as one of their assets. Read our bitcoin broker reviews below before deciding which bitcoin broker to use.