If you use del.icio.us to store your bookmarks, check out the del.icio.us direc.tor, an ajax-powered take on making a superior interface for del.icio.us’s bookmarking service. The author calls this a prototype but really this is ready for primetime in the sense that it’s well designed and immediately useful. One caveat for the mac folk – due to a safari issue you can’t use that browser. Visit with Firefox if you’d like to tinker with this.