Basic knowledge helps you to understand the gateway of the market, with time you need to update yourself which pair is performing better and how the real financial health of the respective economies. I prefer to analyze the pairs before trading. Only your intellect will help you to survive.
If you do some research you will find that there are good and free ebooks that can really help a newbie trader with the basics of forex trading. Website tutorials is what most traders seem to prefer as their source of knowledge but there are alternative available like these forex books if you can afford to get one.