Just received this from Ameerican Express: Offer dates: Now - June 30, 2011 This May and June, earn 300 Membership Rewards points for every visit to the Delta Sky Club.* Flying on Delta Air Lines has never been more rewarding, relaxing, or enjoyable for Platinum Card members. When you use your Platinum Card to access any one of the worldwide Delta Sky Clubs this May and June, you will receive 300 Membership Rewards points for each visit. There's no limit to how many points you can earn. So if you fly Delta Air Lines and visit their lounges frequently, you can be rewarded again and again. This exclusive opportunity allows you to enjoy all the benefits of a quiet airport refuge where you have room to work and space to breathe, along with appetizers and beer, wine and spirits available all day and served on the house. To gain admission, simply present the Delta Sky Club agent with your Platinum Card, a ticket valid for same-day travel on Delta, and a government-issued ID.