Luis von Ahn builds systems that combine humans and computers to solve large-scale problems that neither can solve alone. Ahn is an associate professor of Computer Science at Carnegie Mellon University, and he’s at the forefront of the crowd sourcing craze. His work takes advantage of the ever growing Web-connected population to acheive collaboration in unprecedented numbers. His projects aim to leverage the crowd for human good.

Ahn’s company reCAPTCHA, sold to Google in 2009, digitizes human knowledge (books), one word at a time. His new project is Duolingo, which aims to get 100 million people translating the Web in every major language.

To learn more about Luis von Ahn’s work, please visit:
http://vonahn.blogspot.com/
http://duolingo.com/