Amazon Mechanical Turk

My sister sent me a link about "Mechanical Turk." The idea is that there are tasks that humans find very easy compared to computers, for instance, locating a person's mouth in a face. At the website, an experimenter (perhaps in artifical intelligence) can solicit human helpers who can do these kinds of tasks and thus teach a computer to do them on its own. The compensation is provided to the human helpers in Amazon.com credit. For more information, see the FAQ.