The new feature called Sidebar sorts through searcher's Facebook friends to identify which ones might have information valuable to the current search. It also lists Twitter accounts likely to hold answers, Microsoft says.

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The new features won't be available for a while, but those who want to be notified when they are can register at www.bing.com/new .

With the new features when someone searches, they get the usual results that run down the left side of the page. A new center column called Snapshot lists sites that are relevant to the search but also contain action items. So if someone searches on Florida vacations, the center column might list airlines ticketing sites and hotel reservation sites.

A third column on the right called Sidebar lists Facebook friends who might be able to offer advice on the subject about which the search was made. So in the Florida vacation example, Sidebar would list friends who have added recent photos of their trip to Florida or whose postings indicate they traveled recently to Florida or who actually live in Florida.