Here are the basics that you will want to learn about:

- Technical Analysis
- Fundamental Analysis
- Trading Psychology
- Trade Planning (entry/exit points, stop loss orders)
- Learn what a pump and dump scheme is (to avoid being a victim of them). I personally stay away from low price stocks because they are very susceptible to manipulation.

The local library or online would be a great free resource to get started. See http://www.investopedia.com/ for some basic information.

If you have any questions, don't hesitate to ask. I'm a seasoned veteran that doesn't mind sharing my wisdom with new comers in the markets.

p.s. If you are in the market for a solid stock screener you should check-out the one I created. It brings all the various information together to aid in a more informed decision when making trades.