New York City Mayor Proclaims April 16 'Foursquare Day'

New York City mayor Mike Bloomberg declared Saturday, April 16, 2011 "Foursquare Day," the city's first "social-media holiday."

Source: http://www.pcmag.com/article2/0,2817,2383591,00.asp?kc=PCRSS03069TX1K0001121

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