facebook and Microsoft announced today a new 'graph search' service. "Graph Search will be the new empty field next to a magnifying glass icon that appears at the top of every Facebook Page you visit, eventually. The tool is in limited rollout to the market right now and only available to select US English users. The search tool will supersede Facebook’s current key word search tool by focusing on phrases to group up information in a context that’s personally useful." A graph search makes sense, and would eventually provide better results than Google, but it really depends on people being engaged enough with Facebook to generate useful data, and that is far from clear. More from E-Commerce Times, Social Media Today, BBC News, Mashable, Brian Kelly, ClickZ, Technology Review, Ben Werdmuller, Wired News.