Foursquare’s Dennis Crowley wants to know where you are
Channels with Peter Kafka
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The Importance of Location Tracking in the First Square Experience
Swarm is a mobile app that tracks your location and sends it to other users. The data can be used by third parties for advertising, but the company says most people don't know they're being tracked. It's an anonymized set of information with different segments based on where you've been in the last 24 hours.
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