Social Bookmarking:

Is a way for Internet users to store, organize, share and search bookmarks of web pages. In a social bookmarking system, users save links to web pages that they want to remember and/or share.

If this article is helpful, why not share it with others? When you click on the bookmarking menu you'll get a list of several sites. Choose one and save this article there.

These bookmarks are usually public, but depending on the service's features, may be saved privately, shared only with specific people or groups, shared only inside certain networks, or another combination of public and private.