If you have an American Express card and are looking for the AMEX rewards site and you are performing a Google Search Query, you're not alone. Every time I go to their website, it always leads me to some bogus www.AmericanExpress.com webpages and I can never find the rewards site from my American Express account profile. So here's the link:
In Google, I tried searching for "American Express Membership Rewards", "AMEX shopping", "American Express Shopping", "American Express Rewards", and "AMEX membership rewards". Even "membership rewards" does not return a description for the site, but the words, "process direct".
BTW, I usually redeem Apple iTunes 50 song e-certificates for 8K points. A gift code is delivered in less than 3 hours. I am also a big fan of Bose Headphones and the Quiet Comfort 2 are 35K points and are usually delivered in a few days.