http://www.beet.tv/2008/11/google-finance.html

Late yesterday, Google announced that it is putting text advertising onto Google Finance, the financial news and portfolio/stock tracking site. Google is putting considerable resources into the site and plans to expand it globally, according to an interview with Google's R.J. Pittman we did in July. R.J. indicated in the interview that Google will likely extend associations with stock brokerage firms to bring transaction opportunities to the site. To our knowledge, this has not yet happened.
Danny Sullivan at Search Engine Land has a post about emerging ads on various Google properties.
-- Andy Plesser, Executive Producer