| http://www.w3.org/ns/prov#value | - [Update: Facebook has confirmed that Bing is the first advertiser to use its new logout page ad unit.] The new featured placement for Bing stems from Facebook???s longtime partnership Microsoft, where Microsoft is an investor and provided display ads, Bing powers the social network???s internal search engine and other features, and Facebook contributes data to Bing???s own social search features.
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