You should take time to design your URL structure. If there’s one thing I hope you remember after reading this article it’s to take time to design your URL structure. Don’t leave it up to your framework. Don’t leave it up to chance. Think about it and craft an experience.
URL Design is a complex subject. I can’t say there are any “right” solutions — it’s much like the rest of design. There’s good URL design, there’s bad URL design, and there’s everything in between — it’s subjective.
via Warpspire – URL Design. Might I suggest that The San Fransisco Chronicle read this article for improving their urls. The article also gives a good look into the new Javascript API’s for pushing url states into the browser’s history and address bar.