For one of my personal projects I needed a chart of stock value for one of public companies in Poland. Unfortunately, I wasn't able to find anything useful (and free), so I've decided to build it myself. It's available as a widget you could add to your own website. Live demo is available here.
The widget in its current version uses daily data in Metastock format, downloaded automatically everyday at 6:01 pm Polish time from Bossa.pl. You will need to know exact ticker from files published there.