Pitchfork:

"The Shins' James Mercer and Danger Mouse are sneaky guys. The viral campaign for their collaborative album under the name Broken Bells has kicked off with a series of fun, mysterious clues."

Full story here: http://pitchfork.com/news/37389-james-mercer-and-danger-mouse-launch-mysterious-internet-campaign/

I am pretty excited about this.