I found this TEDx presentation by Luis von Ahn (the ideator of the project [and father of CAPTCHAs, btw]) worth watching:
TEDxCMU -- Luis von Ahn -- Duolingo: The Next Chapter in Human Computation https://www.youtube.com/watch?v=cQl6jUjFjp4 Cristian _______________________________________________ foundation-l mailing list [email protected] Unsubscribe: https://lists.wikimedia.org/mailman/listinfo/foundation-l
