A certain online retailer posted a letter, of sorts, to not-logged-in customers visiting the home page, about their rating on the American Customer Satisfaction Index. They have consistently scored higher than anything else on the index, ever, across all of retail (not just online), and last year jumped four points higher than the previous year. That's neat, but I'm mostly blogging this for the rest of the report. Check out the low scorers in various categories: Kmart, 70; Home Depot, 71; Wells Fargo, 69; Aetna (health insurance), 65; McDonald's, 61 (ouch!).