It is advised to do your own research at all times.
You can skip straight to the Research Links which also contain links for beginners. Or just go through all of the above.
There are more information about the stock market such as portfolio management, risk management, different types of investing, etc. that are not covered on this website. Please do not risk your money by trading with little knowledge. Always read up as much as possible in what you are investing. And always trade after you have done your own research.