"Users will continue to experience search as a vital part of their Yahoo! experiences and will enjoy increased innovation thanks to the scale and resources this deal provides," sais Yahoo! CEO Carol Bartz, as Yahoo! and Microsoft today announced an agreement that the companies believe "will improve the Web search experience for users and advertisers, and deliver sustained innovation to the industry."

"This agreement comes with boatloads of value for Yahoo!, our users, and the industry, and I believe it establishes the foundation for a new era of Internet innovation and development," Bartz added.

"Through this agreement with Yahoo!, we will create more innovation in search, better value for advertisers and real consumer choice in a market currently dominated by a single company," said Ballmer. "Success in search requires both innovation and scale. With our new Bing search platform, we've created breakthrough innovation and features. This agreement with Yahoo! will provide the scale we need to deliver even more rapid advances in relevancy and usefulness. Microsoft and Yahoo! know there's so much more that search could be. This agreement gives us the scale and resources to create the future of search."

"This deal fits the long-term strategic direction of Yahoo! to remain the world's leading online media company and Carol Bartz has the full and unanimous support of the Yahoo! Board behind this deal," said Roy Bostock, chairman, Yahoo! Inc. "This is a significant opportunity for us. Microsoft is an industry innovator in search and it is a great opportunity for us to focus our investments in other areas critical to our future."

In simple terms, Microsoft will now power Yahoo! search while Yahoo! will become the exclusive worldwide relationship sales force for both companies' premium search advertisers.

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