This neews come from Reuters. Finally, Yahoo have agreed on advertising partnership with Microsoft. But, i think Google still the best partner for global people in the world..

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Microsoft Corp and Yahoo Inc have agreed to an online search and advertising partnership, in an attempt to rival Google Inc, that will be announced within 24 hours, a source familiar with the situation said on Thursday.

Microsoft will not pay an upfront fee to Yahoo, and the focus of the deal is on sharing revenue between the two companies, said the source, who did not want to be identified because a formal announcement has not been made.

The news and details of the expected deal were first reported by the AllThingsDigital blog and Advertising Age.

Microsoft and Yahoo declined comment. The two companies have talked for months about cooperating in the online advertising market, dominated by Google.