Facebook's Graph Search announcement - should you be cynical, cautious or excited?

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The UK's Guardian newspaper went for broke yesterday with a headline speculating what Facebook's "big announcement" on Tuesday morning would be.

The Guardian's strapline (that's jargon for subheading, by the way), backed one of three guesses by industry analysts: a smartphone, a new-look news feed, or the introduction of per-message charging.

Further down in the article, the Guardian admitted of a fourth option, namely that the social networking giant might announce a "search engine to rival Google." That was the closest guess, but still not spot-on. The big announcement turned out to be a thing called Graph Search, which is supposed to let you "find more of what you’re looking for through your friends and connections":