JMB members who register their email addresses using the Web site http://www.japanair.com/Promotions/e-mail_Campaign.htm for the first time will have their name entered for a chance to win 25,000 bonus miles. And, if you don’t win one of the five 25,000-bonus mile prizes, you’ll still have a shot at 10 prizes of 10,000 bonus miles.

Even if you don’t win, you will still receive the JMB e-newsletter, "JAL Mileage Bank e-News America." The promotion period ends Aug. 15.