Get $10 Statement credit from American Express when you spend $10 or more in a single purchase at a qualifying small business in Boston, Chicago or Philadelphia from June 21, 2012 to July 4, 2012.  You must register the card in order to qualify for the deal.  Click here to check to see which small business you can shop for the deal.

• Boston – https://enroll.amexnetwork.com/US/en/bos/
• Chicago – https://enroll.amexnetwork.com/US/en/chi/
• Philadelphia – https://enroll.amexnetwork.com/US/en/phil/

Or alternatively, you can Sync your American Express card to the Social Media sites to qualify for the deal.