FOREX market brokers

There are plenty of Forex market brokers. Consequently, they need to be supervised, therefore you will need to check whether a particular company is registered in CFTC KNF, FSA, CySEC, SEC, or is a member of NFA.
The information is available on this website:
http://www.nfa.futures.org/basicnet/
Before you choose a broker, check:
-    what platforms he works on
-    what the entrance costs are
-    whether the spread is fixed or variable
-    how many pips spread costs for pairs we want to work with
-    the broker’s leverage level
-    whether the broker offers minilots, training platforms
-    what are the costs of keeping a position overnight (SWAP)
Broker’s task is to keep a particular investor’s capital (deposit). Broker may be the other side in transaction or he can enter a particular capital on the market with others and then look for transactions.
Forex ECN market brokers are middlemen, they do not perform as the other side of transaction. They only look for a proper investment on the market which I have already mentioned. They usually have low costs of transactions (spread).
Market Makers guarantee stability of the market and also they act as the other side of transaction. It is worth to check their transaction conditions available for clients.