Not just a word to describe chocolate cake but a handy tool for bookmarking.
From the Delicious Help Page http://delicious.com/help/about
What is Delicious?
Delicious is a social bookmarking service that allows users to tag, save, manage and share web pages from a centralized source. With emphasis on the power of the community, Delicious greatly improves how people discover, remember and share on the Internet.
Things you can do with Delicious
Bookmark any site on the Internet, and get to it from anywhere
Instead of having different bookmarks on every computer, Delicious makes it easy to have a single set of bookmarks kept in sync between all of your computers. Even if you’re not on a computer you own, you can still get to your bookmarks on the Delicious website.
Share your bookmarks, and get bookmarks in return
If your friends use Delicious, you can send them interesting bookmarks that they can check out the next time they log in. Of course, they can do the same for you. As you explore the site and find interesting users, you can use our Subscriptions and Network features to keep track of the Delicious tags and users you find most interesting.
Discover the most useful and interesting bookmarks on the web
See what’s hot with Delicious users by checking out our popular tags. By looking at popular bookmarks for a tag, you’ll be able to discover the most interesting bookmarks on the topics you’re most interested in. Browse bookmarks on just about anything from the best programming tips to the most popular travel sites, all in an easy to read format.