Steve Rubel has written about “Yahoo is testing a new program that allows any publisher - especially bloggers - to put real-time stock quotes and charts on their sites. A public beta is expected in early June.
Publishers have the option to select any combination of quotes, charts and news. Each widget includes two chart types and can have up to 10 symbols. There are also two skins - one looks like the current Yahoo Finance site, while the other looks a little like the new one that will be released soon, except in black. There are instructions on the site on how to integrate the charts into your blog platform.