In addition to double miles at select retailers, American AAdvantage members can earn a $25 gift card when shopping at www.aadvantageeshopping.com merchants through Dec. 31, 2009. To earn the $25 MasterCard gift card, you will need to enroll online with your AAdvantage number and register a MasterCard credit or debit card through the eShopping mall. Spend $250 at any online retailer via the online mall portal with your registered MasterCard and you’ll receive a $25 gift card four to six weeks after the promotion ends. Gift cards will be mailed to the address you have on file with AAdvantage so check your account profile to make sure your address is up-to-date. Be sure to complete your holiday shopping early since the offer is available “while supplies last.” There are 15 retailers who are offering double miles for online purchases through the end of the year, including Sears, Macy’s, JCPenney and Piperlime.