Top 12 Stock Exchanges by market capitalization
http://www.wealthson.com/337/top-12-stock-exchanges-by-market-capitalization
List of Stock Exchanges
http://www.wikinvest.com/wiki/List_of_Stock_Exchanges
List of stock exchanges
http://en.wikipedia.org/wiki/List_of_stock_exchanges
https://en.wikipedia.org/wiki/List_of_stock_exchanges#Major_stock_exchanges
World federation of exchanges
http://www.world-exchanges.org/
Dow Jones Industrial Average – DJIA
http://www.investopedia.com/terms/d/djia.asp
Standard & Poor’s 500 Index – S&P 500
http://www.investopedia.com/terms/s/sp500.asp
Nasdaq
http://www.investopedia.com/terms/n/nasdaq.asp
List of stock exchange opening times
https://en.wikipedia.org/wiki/List_of_stock_exchange_opening_times