This document discusses the basics of social bookmarking and tagging using the website Delicious, including: 1) Delicious allows users to save bookmarks online and tag them with keywords, making it easier to organize and share bookmarks across computers. 2) Tags are keywords that users can apply to bookmarks to categorize them. Websites and images uploaded to sites like Flickr can also be tagged. 3) By tagging bookmarks on Delicious, users can build bibliographies, share resources with others using common tags, and subscribe to their friends' tags on favorite topics.