While having status with airlines doesn’t have the benefits it used to offer, it can still be worth while if you fly one airline often.  Delta Airlines and American Express are offering a 50% mileage bonus on all the Membership Rewards points your transfer into your SkyMiles account by December 15, 2010.  In addition, if you transfer 50,000 points or more, you’ll receive 25,000 Medallion Qualification Miles (MQMs).  That is enough to earn Silver Status or even push you over to a higher level.  Some of the benefits of having Medallion status include waived baggage fees, unlimited upgrades and more.  You can attempt to register for the promo here.