American Airlines 321 Challenge

https://www.facebook.com/AmericanAirlines/app_252016921616266

To celebrate our new Airbus A321 Transcontinental planes, we’d like to get 321,000 new Likes. When we do, you’ll have a chance to win a trip from our prize pool, which stands at:

AAdvantage® miles to be won.
Here’s where it gets interesting. With every minute that passes, 100 miles from our prize pool will vanish—until we reach our goal of 321,000 Likes. Once we do, we’ll stop the counter and award the remaining miles as prizes to lucky travelers. (The prizes are 25,000 miles–good for a U.S. domestic round-trip.)