The document discusses Delicious, the original social bookmarking site. It highlights Delicious' unique values like its social aspect that allows sharing bookmarks with personalized messages and following others with similar interests. Tags allow users to describe bookmarks with keywords to connect with others interested in the same topics. The document provides tips on using Delicious effectively, such as creating focused, regularly-updated content with catchy titles and tags. It also profiles user Howard Rheingold, an early Delicious adopter who uses it to share information with his students.