what is a stock market?

• http://www.wisegeek.com/what-is-the-stock-market.htm
• http://en.wikipedia.org/wiki/Stock_market
• http://www.investopedia.com/terms/s/stockmarket.asp
• http://www.themint.org/kids/what-is-the-stock-market.html
• http://money.cnn.com/data/markets/dow/?page=1
• http://money.cnn.com/data/markets/dow/?page=2
• http://en.wikipedia.org/wiki/Dow_Jones_%26_Company
• http://new.dowjones.com/about/about-us/
• http://en.wikipedia.org/wiki/List_of_assets_owned_by_Dow_Jones
• https://www.google.com/finance/portfolio?action=view&pid=27&ei=ntWxUsCjCaSGsgesrwE