After noticing in one browser an ad from Amazon, on its site for "New Dresses," I wondered if Amazon was having a personalization failure, or if it was announcing to everybody that it was now selling dresses. So I tried looking at the same index page in two other browsers, one of them "virgin" in the sense that I like to keep it clean of cookies: no personalization possible. So I put it up here to explore the results and stimulate conversation.