One of the reasons I like using Delicious is that I can add, edit and remove links instantly. This keeps the links as current and fresh as possible. I can use as few or many tags as I think are required to access the information I, or those using my weblinks, need to locate what's being sought. Using everyday language (rather than controlled vocabulary) for tags allows for highre accessibility. On the down side (only a little) Delicious can be a bit slow to open initially, but once you're connected it's a breeze. And once the user is familair to the way Delicious organizes information, it is less daunting to use.