How Much Can I Scrape?
ca98am79: what kind of data do you want? real-time? or end of day?  If you just want end of day data, it is simple.  Just write a script that collects it in the middle of the night and stores it in your database.  I don't think they mind at all if you just do it once a day for all of the stocks - I know people who have been doing it for years.  They use this:http://www.gummy-stuff.org/Yahoo-data.htmIf you want real-time data, good luck.  It will cost you.