I am playing with moving jaxn.org to shorter permalinks. A long time ago I read that it is a bad idea to include dates in a permalink because it makes older posts look stale even if the content is relevant. I have also been seeing some people talking about the importance of short URLs since they are more portable (and are more likely to fit in twitter).
Unfortunately, changing the permalink structure in Wordpress seems to break all existing URLs. I thought I had read something about the new release of Wordpress handling changing permalink structures gracefully.
