In our credit card listings in the August issue, we incorrectly stated that cardmembers who own a Classic Delta SkyMiles Credit Card by American Express earn one mile for every two dollars spent. (We misinterpreted the following sentence: “Earn one mile for every other eligible dollar you spend.”) The correct amount is one mile for every dollar spent. Visit http://insideflyerus.wpengine.com to read the updated advice for that card.