Investopedia.com

If you know nothing at all about investing go to investopedia.com. I wish I had discovered it sooner. There you can find out literally everything there is to know about investing mostly for free! You can also play the stock simulator game which starts you out with $100,000 (in fake money) and you trade in near-real time on real markets with real companies. there is no better way to learn about investing than to learn by doing. I consider myself somewhat knowledgeable when it comes to stocks but far very, very far from an expert. That is why I am playing the simulator to sharpen my skills and buy some of the stocks on my watch list that I don't have the real money to buy right now. You can link directly to the simulator here