Del.icio.us

Ahh, this is great! Now I can eliminate all the folders on my desktops that have links to all my favorite websites and just go to Del.icio.us.
A very useful tool for keeping all your fav links accessible from anywhere.
Searching Del.icio.us I've found many of my fav sites, and happily some new ones!

Libraries can easily create lists of recommended sites on different topics, parenting for instance, to share with library users and other librarians world wide. Tagging adds value to the Internet by showing others looking for the same information what has been useful, a path through the quagmire.

Tagging also helps rank pages, showing how many others found the site useful enough to save. The only caution I would give is to, as always, consider the source whenever possible. I also think exclusively depending on what others have found can be limiting, so always broaden a search into other areas before deciding you've found it all.