Crowdsourcing Amazon Mechanical Turk, http://clickworker.com (more German population) Collective intelligence Examples GifGif HOW TO USE GIFS TO TEACH COMPUTERS ABOUT EMOTIONS Articles Inside Twitter’s Human Search Army References Analytic Methods for Optimizing Realtime Crowdsourcing Markerless Motion Capture in the Crowd - Figure 2: silly walk! Learning to Predict the Wisdom of Crowds Conducting perception research over the Internet: a tutorial review