BBC NEWS | Business | Microsoft and Yahoo seal web deal
Yahoo and Microsoft have announced a long-rumoured internet search deal that will help the two companies take on chief rival Google.
Microsoft's Bing search engine will power the Yahoo website and Yahoo will in turn become the advertising sales team for Microsoft's online offering.
Yahoo has been struggling to make profits in recent years.
But last year it rebuffed several takeover bids from Microsoft in an attempt to go it alone.
Microsoft boss Steve Ballmer said the 10-year deal would provide Microsoft's Bing search engine with the necessary scale to compete.