Ignore Foursquare at Your Peril - An Analysis of Potential.
Convince & Convert
APRIL 7, 2010
Whrrl also lets other people check-in to MY check-in turning it into an almost virtual layer over our real life event. Whrrl also lets other people check-in to MY check-in turning it into an almost virtual layer over our real life event. Depends on your resources and how big these geo-apps get.
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