Andrew Pasterfield, one of our library programmers, has built a tool for himself that you might also find useful. Site Cite allows you to bookmark websites with a URL of your choosing, so you can recite it to another person w/o having to look it up. As long as you can remember the URL of the service (http://sitecite.net) your username and the short tag you gave the page, you can tell someone the site to visit from memory. Once you've used it a few times all you'll really need to remember is the tag. "Hey, go check out the latest information about the Perigrine falcons that nest near the library at sitecite.net/ppival/falcons"
It's got a nifty autocomplete feature that'll help you discover tags you've already used- as you begin to tag something it'll let you know if you've tagged anything else with those starting letters.
Definitely a beta right now - many features still to come according to the amusing FAQ. Needs a bookmarklet or Firefox extension before I'll consistently use it, but I can see the potential. Check it out!