(AP) -- Although it plans to lean on rival Microsoft's search engine, Yahoo says it will keep innovating in the field. That's one of the main messages that Yahoo tried to convey Monday it previewed an upcoming overhaul to its search page.

Yahoo also unveiled a long-planned change that will bring more applications and information from other Web sites into its widely used e-mail service.

The upcoming changes to Yahoo's search engine will include a feature that will let users look at results from social hubs like and Twitter directly on Yahoo's results page. The new look is expected to be unveiled by the end of the year, shortly before hopes to embrace Microsoft's .

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