Certainly I know some people of U of I who worked on it, but Hadoop isn't developed for a Yahoo user. It is used mainly for serving ads and doing market analysis. A normal Yahoo user reads their mail and the sports page. Google makes its bread by facilitating advertizements on other peoples websites - it provides these kinds of technologies to other people. How they put up advertizements is their choice. Google's clients are responsible for content. Yahoo is more about providing media, they happen to make revenue with their own internal advertizements.
Google's primarily goal isn't to own every computer screen, they just hope that their ads make it to every screen. Yahoo's goal is to fill every screen. For Yahoo buying screen space is a end in itself.
The fact is that technology is in almost every facet of the world. However we view Yahoo!, they must know that technology is foundational relationship to cultivate and enhance.
idk, their core asset may not be their technologies. Their asset maybe the ad space they sell and the properteis they own. I think of Yahoo in as in the buisness of owning things so they can sell adds. I don't think they care about the technology of this app (which is less then a masters thesis) compared to its user base.
