Yahoo, lest we forget, is very strong in finance. As we learn in this Bloomberg video- Yahoo’s Big Business, people in the finance community use it as well as their Bloomberg terminals, and individual investors both sophisticated and novice go to it..
The Head of Yahoo Finance, Aaron Task, described features and future for Yahoo Finance. He summarized that Yahoo Finance does well at aggregating information for news and research, providing own analysis, personalizing the selection and presentation, and providing mobile access. It has much more than stock quotes.
http://www.businessweek.com/videos/2013-01-09/yahoos-big-business-mail-sports-and-finance