Note: It seems that Facebook has limited Wolfram's API calls, so you might get an error when accessing the tool for now.

ENGADGET

"Our goal is to make expert knowledge accessible to anyone, anywhere, anytime, " said Dr Wolfram at the demonstration at Harvard University's Berkman Center for Internet and Society.

BBC: Web tool 'as important as Google'

These are questions that can't be answered by Facebook's latest Graph Search, but they're perfect for the stats geeks over at Wolfram Alpha.

ENGADGET

"Our goal is to do what a top data scientist would do if given the user's data -- but to do it automatically in just a few seconds, " said Stephen Wolfram.

ENGADGET: Wolfram Alpha Pro now available, $4.99 a month will let you throw almost anything at it for analysis