Sign up with USAIR and enter NMCB promo code and you will get 1000 FREE miles which you can use towards the following FREE Magazines subscriptions: Glamour, Teen vogue, Details, Health, Money, Sports Illustrated Kids, Coasting living, The New York Observer, Essence, Coasting living, , People En Espanol, This Old House, Golf, Diabetes Forecast, Cigar Aficionado, Fast Company or Sunset (Please NOTE: It can take up to 48 hours to get your FREE miles.) This was posted back in July, but the offer code is different.
To get to the magazine subscriptions, go to your “Divided Miles” on the top tab. Then select use miles. Under subscriptions for miles select magazines and you will be all set. (Or here is the direct link)