I would like to know if there is some way to access the values of the exchanges(important ones like nasdaq, Bse, nse ,dowjones,japanese and asian markets). I know about yahoo finance but am unsure of how exactly to get a list of all exchanges.
Google it - example: http://www.world-exchanges.org/. If I were you I would try rss feeds - http://www.youtube.com/watch?v=TZ8mhOoRK7I.
Hope it helps.