Geotagging: Tweet Your Way to Success

Back in instant messaging’s heyday, I was always a bit perturbed when someone left an away message with a not-so-specific location.  “At the nail salon.” Now, I’d love to join you for a pedi, but where to head? I’m from New York, where nail salons are about as common as pizzerias, so a generic reference whittled the possibilities down to, oh, about 6 shops in a 2-mile radius.
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