BROKERS DEALING DESK
That is a broker who makes a market in which they own with the condition that they set themselves. In this case the user to bet against the broker or dealer. Basically dealing desk brokers benefit from the defeat of the user should, so that when users generate profit then the broker will pay the broker his own cash (not purely derived from actual market). When you trade in species Dealing Desk broker then make sure you put your funds in a registered broker dealing desk (regulated) as a brokerage firm and has a good reputation. Good regulation, namely: NFA, FSA, ASIC. Dealing desk brokers is often referred to as dealers (dealers). Dealers consists of two types:

Big Dealer
Brokers this type usually has a good reputation and legally registered (regulated) as brokerage firms (Futures Commission Merchant or FCM) as regulated in the NFA, CFTC, FSA, and is not located in a remote or obscure. Just as you play in a casino then you should look for such a large casino in Macao or Las Vegas. It is intended that if you get a profit then certainly the broker can pay your winnings and deposit your funds are safe investments. Because in a regulated broker dealing desk is there a regulatory body (generally from local governments) which aims to control or ensure that the broker has done its job well and does not deceive customers.

Small or unregulated broker dealers (brokers Bucket Shop or five feet)
This type of broker is a broker you should avoid, because they are potentially large transactions to manipulate you or cheating so you will easily defeat that should not happen. Bucket shop brokers generally are not licensed properly, and only licensed as an ordinary company or other (not as a brokerage firm) and this is often misleading potential customers who still lay.
The characteristics of bucket shop brokers are located in places that are not clear (offshore countries that are not clear) and is not permitted regulation as it should (this is usually done). Besides, other features of the bucket shop brokers are those 98% would allow it to transfer money to third parties / individuals, or use a voucher, may use the Liberty Reserve, which is very easy registration and impressed at random and without adequate verification, then there is a limit or prohibit a particular trading technique (like scalping, martingale and so on) there is also a bucket shop broker who allows all kinds of trading techniques as in the system is already installed an automated script that can inhibit these techniques (the script is usually called Virtual Dealer). Conditions offered bucket shop brokers often outside normal market conditions are true, as the leverage is too high (eg 1:1000), low spreads that make no sense (example: 1 pip pip fixed even 0 fixed, when in actual market spreads is always changing constantly every second), and there are also big bonuses whose purpose is to attract customers to want to put their funds (which eventually was to "eaten" by the dealer is cheating). Be wary of brokers who offer things too bombastic or bonuses that looks very interesting, because the larger the bonus then you need to watch more carefully, rather than later caught and you will experience the loss is not comparable to the bonuses offered.
These things are usually done by fraudulent brokers are manifold Bucket Shop: requotes excess, slow order execution, if exposed to TP (profit target) is difficult to be executed but instead if exposed to SL (stop loss) it is easily executed, the server is often down, quote price manipulation, profit unilaterally eliminating transactions with your trading pretext unauthorized withdrawals of funds are often detained or can not be done, a statement that is untrue, and matters of fraud (scam) others. Be careful with statements from the broker buckep shop that often provide false and misleading statements about their systems, as they claim that they are manifold ECN broker or STP, but in reality they are dealing desk that applying airports even worse, it is solely aimed at to deceive and attract ordinary people to trade in their place, when in fact they are NOT the actual ECN or STP. Therefore, IT IS VERY IMPORTANT regulated so as not to carelessly their supervisors and providing false statements to mislead the public.
Beware also the Award and awards that they claim (usually done by illegal brokers & Bucket Shop to attract attention). Example: as the best broker. The award does not guarantee the brokers are safe. And check out all of the institutions which gave ratings companies. And search on google about the credibility of the company's rating. Example Prime4x a scam forex brokers also previously claimed as the "Best Broker 2009" when the rating agencies are institutions that are not credible, and the proof is in fact a scam broker and carried off clients' money. Be careful also with a buy rating (or call it corruption / bribery), and carefully it is with that as if it were an award when it was just an article advertisement from the broker's own writing, but made as if it were an award from the media , but it is not (never happened on a broker who claims his appreciation is from CNBC, but after investigation it turns out it was just an article written ad itself). Be alert to the tricks of "rogue" and a statement / advertising that is not true of illegal forex broker.