Maybe a good name for dynamic OPML on the web is "feed sharing." It's definitely an extension of the web. Meaning you get to the list via the web, and the web takes off from there because the whole point of the OPML is to give you a collection of web addresses of feeds, that can change. Machine-readable. And it'll be very useful once there's a little more adoption. What large product is so strong that it won't mind if it's easy to move data into their system from outside their walls? Not just data, but pointers to places were over time there will be more data. There's still more power to explore in the web, but the web is made of people, because until people choose to explore, nothing happens. #