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5. Google 'sniffing out' search results
Yet another Google prank for April Fools' Day, as the search giant goes all out on its range of stunts, spanning social networking, mapping and video. And its core search business is no different.
Google "Nose" probably didn't have many fooled, the concept is interesting, allowing users to search for smells and have it fed back to them via their smartphones. Even "don't ask, don't smell" features are included for the more nefarious, not-safe-for-work Web results.
Check out the new 'service' here.