Vedanā (pronounced VAY-dunna) is Pāli for raw physical sensation, which can be objectively observed in meditation to provide insight into the impermanent nature of all things.
The Blosxom weblogging system has always taken a similar approach to URLs. See my weblog for examples...
Looks like AudioScrobbler tries to do nice URLs too.
Señor DiBona posted a bit about this today.
Mike Tsao posted a followup to DiBona's post.
A bit more from Señor DiBona.