RSS (Really Simple Syndication)
A data protocol for distributing XML based content.
It is primarily used by news sites and blogs to alert you to changing news stories.
Any Web site can issue an RSS feed and to read it, you need a feed reader which interprets the XML code.
What appears on your web page, if you are a subscriber and you have a feed reader, is a short description of a story and a link to the full text. In effect, it is a descriptive dynamic link.