http://download.finance.yahoo.com/d/quotes.csv?s=INDU,^IXIC,^GSPC,^FTSE,^N225,D1AR.DE&f=snl1d1t1c1p2ohg

CSV with Stock Data
http://download.finance.yahoo.com/d/quotes.csv?s=INDU,^IXIC,^GSPC,^TNX&f=snl1d1t1c1p2ohg

Feed API
https://code.google.com/p/yahoo-finance-managed/wiki/enumQuoteProperty

Additional Info:
http://stackoverflow.com/questions/3679870/yahoo-finance-csv-file-will-not-return-dow-jones-dji