Part of the open services discussion at barcamp yesterday was about permanence: how do you guarantee that your data is always available so that you can take it and go elsewhere with it? Doc Searls has one solution to the problem:

Since I’m a Berkman fellow at Harvard, and the blogs here are well-supported, and they’ll continue to be supported after my fellowship is over — and since Harvard has been around since 1636 — [Harvard’s blogging server] seemed like a good choice.

(emphasis mine.)