[electronic currency trading]
There are 2 markets for this, one is the GLOBEX, the other is the FOREX.
I donot trade via either, however, I can offer some links that may help you.
First, you should read this on the FOREX.
http://www.cftc.gov/opa/enf98/opaforexa15.htm
This is the BIG one (FOREX), where the major players are. For the most part it is an unregulated market. You see banner ads all over, offering little or no commission trading with an account as small as several thousand $$$. Trades world wide 24/7, check that, it might be 24/6.5.
Advice is worth what you pay for it, and the price here is free, so do your own homework.
Make SURE you completely understand the risks involved in trading here.
Here is a link to a free real time price chart on the FOREX. Another word of caution. Some prices are in US $$$, but when you trade you buy(sell) the underlying in that currency, so you need the correct quote for say, the Japan Yen. Example: US$130 = .007692 JY (appx) [check my math, I make no promises]
http://www.forexdirectory.net/quotesfx.html
Here is one more link that I've found useful. Good charts, good advice, but NEVER use only this to reach a decision. (my opinion)
http://www.forex-ats.com/default.htm
The GLOBEX is best explained here. Trades thru Chicago (CME)
http://www.cme.com/
Best wishes, (there's no luck involved)
SteveB