Favorites websites

http://www.nyse.com/

New York stock exchange

uk

http://www.nasdaq.com/

NASDAQ

uk

http://www.cme.com/

Chicago Mercantile Exchange (futures)

uk

http://www.bovespa.com.br/

Sao Paolo stock exchange

por uk

http://www.bcba.sba.com.ar/

Buenos Aires stock exchange

es uk