Leaked doc shows Foursquare's big plans for your check-in data(news.cnet.com)
news.cnet.com
Leaked doc shows Foursquare's big plans for your check-in data
http://news.cnet.com/8301-1023_3-57582006-93/leaked-doc-shows-foursquares-big-plans-for-your-check-in-data/
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