I confess that I learn everything my poor brain can handle at finance.yahoo.com -- was never into day trading (I'm quite risk averse when it comes to money)

I would look at this site: (warning... TONS OF NASTY POPOUPS. Do not cruise without heavy popup blockage) http://metals.about.com/cs/investing/

and this subpage
http://metals.about.com/library/bl-prices.htm