When looking at stocks it is important to look beyond market performance, P/E ratio, and the like to see how the underlying company performance is. Be sure to visit the "Company Research" tab to learn about company financials, read qualitative analyses of company performance, and more.
You may also want to look up articles in magazines like Money, Fortune, Forbes, and Black Enterprise as well as reading the Wall Street Journal. Those resources are available on the "Journals, Trade Magazines, and News" tab.