Interesting, suppose it what Microsoft wanted in the first place!
SUNNYVALE, Calif. and REDMOND, Wash. — 29 July, 2009 — Yahoo! and Microsoft announced an agreement that will improve the Web search experience for users and advertisers, and deliver sustained innovation to the industry. 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.