To begin with, a forex starter must be in a good financial situation for Forex. If you have any (small, medium or large) debt, before you start Forex Trading we would suggest eliminating it to allow yourself the financial freedom to pursue Forex wholeheartedly. Here is a website to set yourself on the path of financial freedom.
When we are in a good financial situation, our next step is to further understand the current world economy. Just following the news will help this step, I suggest the BBC, Associated Press, and the New York Times.

You should have a basic understanding of economic principles. You can find information everywhere on the Internet. The Powell Center for Economic Literacy is a fantastic resource. Also, MIT is offering all of their courses for free online. The economics department is located here.

Here are some more resources in a Beginners Guide.

But do not forget: Forex is not a get-rich-in-no-time scheme. There are a lot of risks and many people lose money trading Forex. With that said, there is also an opportunity to make large amounts of money in very short periods of time using very little of your own money. These sites will increase your knowledge and therefore your ability to trade Forex to your advantage.