Mobile opens up a new angle on crowdsourcing, one that takes on a more stealth approach. While social media thrives on active participation, powerful data is being collected via our mobile devices while we, for the most part, remain unaware. Around the clock, our phones are collecting real-world information, mapping social processes, and transforming us into human sensors.

via TREND: Mobile Crowdsourcing – Using Humans as Sensors « MobileBehavior