Rather then having ads on the back of MetroCards, what about the idea of a Chuck Close inspired puzzle. Find where you think your MetroCard fits and is it the missing piece of the billboard.  Get into it and it could spur your next conversation on your morning commute (if you’re so inclined).
 
 Via fastcodesign

Test your font pairing skills with Type Connection, the first ever matchmaking service for typefaces.

LEGO just got even better. The Life of George is an interactive game combining real LEGO bricks with apps for your iPhone/iPad. With building challenges and AR capabilities all rolled in, we’re hanging out for playtime. http://bit.ly/w9q0dw

Save the world from the zombie apocalypse and get a workout at the same time with this new augmented reality game http://bit.ly/uFr3bY

Foursquaropoly is a combo of Foursquare and Monopoly. Players can buy and sell Foursquare check-in venues and collect rent based on the number of check-ins at each property. http://bit.ly/qU4etP

A clever app and social challenge from Carlsberg encourages Swedes to “unbottle” themselves.