The MIT Libraries Puzzle Challenge is a series of puzzles released during the MIT semester. The series began with three puzzles in the Fall 2007 semester, and will continue with three more puzzles during the Spring 2008 semester. Puzzles are produced with the dual goals of being fun for our community and of introducing solvers to resources they might not otherwise know about.
My personal epiphany that there was a natural connection between puzzle games, learning, and libraries happened while I was playing the World Without Oil ARG and read as strangers on a forum thread worked together to identify a foreign language used in a video clue (Bulgarian) and then translate and transcribe the speech within hours.
I'm not the only one to have made this connection.
And MIT has been playing puzzle games with their students for over 25 years.