RSS (originally RDF Site Summary, often dubbed Really Simple Syndication) is a family of web feed formats used to publish frequently updated works—such as blog entries, news headlines, audio, and video—in a standardized format.An RSS document (which is called a "feed", "web feed", or "channel") includes full or summarized text, plus metadata such as publishing dates and authorship. RSS feeds benefit publishers by letting them syndicate content automatically. A standardized XML file format allows the information to be published once and viewed by many different programs. They benefit readers who want to subscribe to timely updates from favorite websites or to aggregate feeds from many sites into one place. wikipedia
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The RSS technology entails the provision of news summaries to the readers in a bid to increase web traffic. The publisher is solely responsible for the content that is published while the readers on the other hand select the kind of news that is of interest to them. RSS feeds provide great backlinks to your site, and allow direct traffic from surfers interested in what you have to say.