The stock market is a great way to make money but it can be risky. I suggest that you invest a small amount of money to follow and understand the market and then increase the amount of money in stocks. The website I use to follow stocks is Seeking Alpha. It has insightful articles, peoples comments and twitter comments. You have to get accustomed to understanding patterns, when news about companies will come out and when to pull out of the stock(Don't get GREEDY!)
I have noticed the best time to invest in the stock market is right after the market begins recovering from the recession as they are undervalued during this time. Also, beware of the stock market during September because most recessions occur doing this month.