Here is a good campaign for Nike Running out of Amsterdam, leveraging the Nike+ mobile app in combination with a very cool Facebook app, designed to get teenagers back into running.

After identifying that youngsters think running is dull, Nike set out to make it a little more fun and socially rewarding. So they created a campaign called Nike Take Mokum, a social challenge that lets runners draw creative running routes over satellite maps through a Facebook app, before sending out challenges to friends to help complete them in the real world, through the Nike+ running app.