Any good links about URL planning?

I’m trying to summarize my knowledge about the URLs and research all possible aspects of URL planning and design to write up something useful for others to use.

If you have any links to good articles, presentations, research papers or something, please send them my way (post as comments here, or twitt them at me @sergeyche or send them to @sergeychernyshev at or email me at sergey . chernyshev at gmail).

Will really appreciate your help!