A few months ago, I traveled to New York City to participate in Rhizome's Seven On Seven which paired artists and technologists and challenged them to develop something new. The New York Times wrote about the event.
Seven on Seven: Monica Narula & Joshua Schachter
The data was gathered using the Mechanical Turk. I didn't really have enough time to talk about data, so here is actual dataset.
I've posted presentation as well.