Designing URIs

There's an interesting post on All in the Head on Designing URIs. I'd like to put more emphasis on URL design when designing applications. We certainly did in Stellar, and we'd like to move that way in Sakai.

I design URL's based on site hierarchy rather than function. In Stellar, the idea is that a person can navigate by editing the URL if they feel they need to. So the URL pattern is sitetype/department/semester/class/ not the more application based /controller/method/options. I think it's easier to guess, but I'm not sure.