On a very related note, we're announcing today that we implemented what we believe is the world's largest commercial application of Apache Hadoop. We are now using Hadoop to process the Webmap -- the application which produces the index from the billions of pages crawled by Yahoo! Search.
Any time Yahoo tries to boast about how good it is, I go and do a search for some basic stuff -- disappointed yet again with nothing but crap. Hey Yahoo guys, you are in trouble either way. All by yourself you are useless and with Microsoft you are marrying another loser in the search business.