I see that you've rediscovered trails and incorporated it into URL shortening service which uses frames to navigate through the trail. As the author of uggc.cgi

I see that you've rediscovered trails and incorporated it into URL shortening service which uses frames to navigate through the trail. As the author of uggc.cgi ( http://news.ycombinator.com/item?id=177441 http://news.ycombinator.com/item?id=177441 ), I might be biased, but I like it. You may want to get a .se domain to make the URL shorter. You may want to map resource IDs to letters for easier typing on mobile telephones.