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We've briefly seen search tool Powerset in action at SES just a month ago. They were acquired by Microsoft around that time and are already being integrated into search results. The Powerset blog explains some of the feature offerings: Freebase Answers, improved captions for Wikipedia results, and new related searches using the Factz engine.
The blog also shows a screenshot of a relevant search. Unfortunately, I can't reproduce it just yet.
From what I see so far, these new features look quite promising.
Forum discussion continues at WebmasterWorld.
