"Through Dec. 31, AAdvantage members will earn double miles for purchases at the AAdvantage eShopping mall charged to a MasterCard.

MasterCard purchases with 25 featured merchants award even more bonus miles: 2,500 miles for $250 spent, 5,000 miles for $500 spent, or 10,000 miles for $1,000 spent. The featured merchants are Avon.com,, Barnes & Noble.com, Circuit City, ELUXURY.com, eToys, GAIAM, Hallmark.com, Hickory Farms, JCPenney, KBtoys.com, Lands' End, OfficeMax, Old Navy.com, OneStepAhead, Overstock.com, Sears, Sonystyle.com, Target.com, The Sharper Image and TigerDirect, Ashford.com, Gap.com, Blue Nile, Banana Republic.com, macys.com."