Investopedia is a great resource to familiarize yourself with stocks. In specific,
http://www.investopedia.com/university/stocks/ provides a good introduction.
Learn about types of orders here: http://www.investopedia.com/university/intro-to-order-types/
Learn more about market depth here: http://www.futuresmag.com/2014/04/30/trading-market-depth
Learn about dividends here: http://www.investopedia.com/university/introduction-to-dividends/
Other than these, Google is your best friend.
