In the 2/10/06 episode of the O'Reilly Network Distributing the Future podcast, Rael Dornfest and Tim O'Reilly discuss Amazon Mechanical Turk as a way to integrate human power into automated systems to extract value from large amounts of information.

CastingWords.com used Mechanical Turk to transcribe the podcast, thereby making the podcast findable and searchable with text-based Internet resources. Not sure why the podcast isn't linked from the transcription, but still, cool.