I received this in my e-mail. Hopefully it's not targeted, but chances are I received it due to my AMEX DL plat. I don't have a Facebook account so I can't click past the main page yet for more details.

Looks like if you upload your photo and share your vacation experience which you previously redeemed miles for, you can win a prize, and you receive 5,000 miles just for entering. This found very similar to the previous usbank flexperks gig.

Win 100,000 miles! Enter your photo now.1

Have you used your miles? Visit DREAM & REDEEM from American Express, upload a photo, and share your experience. The top four photos with the most votes will each win 100,000 miles. Plus, for a limited time, receive 5,000 miles just for entering.2

http://apps.facebook.com/dreamredeem/