What Are RSS Feeds?
http://www.small-business-software.net/what-are-rss-feeds.htm

Small Business Software
2007

Abstract:

RSS, also known as rich site summary or real simply syndication, arrived on the scene a number of years ago, but was only recently embraced by webmasters as a means to effectively syndicate content. RSS Feeds provide webmasters and content providers an avenue to provide concise summaries to prospective readers. Thousands of commercial web sites and blogs now publish content summaries in an RSS feed. Each item in the feed typically contains a headline; article summary and link back to the online article.