Just discovered this at Brent Simmon's This is exactly what I was talking about when I called for corporate marketing departments to embrace weblog technologies. Keywords here are “weblog technologies”. RSS's heritage is weblogs. And Amazon's adoption and trial using RSS is something to watch.
[…] Amazon.com is now generating RSS: “Selected categories, subcategories and search results in Amazon.com stores now have RSS feeds associated with them, delivering a headline-view of the top 10 bestsellers in that category or set of search results.” (Via Ben Hammersley.)