Delta SkyMiles American Express cardmembers now have access to special deals for online shopping. Cardmembers who use their SkyMiles American Express card when shopping online have access to special deals, sales and up to 25 miles per $1 spent at over 500 retailers through an exclusive Web site at http://www.americanexpress.skymilesshopping.com – You will need to sign up and shop with your Delta SkyMiles Credit Card from American Express to be eligible.