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Street Fight Daily: 09.21.11

David Hirschman

Street Fight Daily: 09.21.11

A roundup of today’s big stories in hyperlocal media, technology, advertising and startups...

Foursquare has just hit one billion checkins. The app had gone from 100 million checkins in July, 2010 to 200 million in Oct 2010 to 750 million checkins in June 2011. Along with the milestone, Foursquare has launched a new version of its app. (TechCrunch)…

HipGeo, a location based social network backed by CitySearch and eHarmony execs, has launched an iPhone app that tracks your travels, then stitches together your photos, comments and pinned locations into an animated diary of each day. (ReadWriteWeb)…