Delicious is an awesome tool for social bookmarking offering features like tagging. I loved this feature because it was great for organization and finding similar sites. This can be used in research to easily decide different resources. I can see using this site when working with groups because the user is able to connect with other members that have tagged and bookmarked similar sites.
Normally when I bookmark a site it is attached to the computer that I would currently be using. With delicious I no longer have to worry about this issue. I can access my favorite sites from any computer.