Duolingo has an also cool approach, where they offer free language courses for students, and charge companies that want certain documents translated. The stude

Duolingo has an also cool approach, where they offer free language courses for students, and charge companies that want certain documents translated. The students themselves translate those documents as part of the course, and once a consensus is reached (a given amount of students came up with the same translation) the document is returned to the submitter, who pays for its translation. http://www.duolingo.com/info http://www.duolingo.com/info Almost like how recaptcha works :-)