[from Wikipedia] Social bookmarking is a method for Internet users to store, organize, search, and manage bookmarks of web pages on the Internet with the help of metadata, typically in the form of tags
Social bookmarking allows users to save links to web pages that they want to remember for the future and/or share with others. The stored bookmarks are usually public, but can be saved privately, or shared only with specified people or groups, shared strictly inside certain networks, or another combination of public and private domains. The allowed people can usually view these bookmarks chronologically, by category or tags, or via a search engine.
UBC In Practice:
The top ten best social bookmarking sites are listed on this website, with a brief description and link to the sites of each of these social bookmarking technologies.
Here's a list of 50+ social bookmarking sites