What is this about?
RSS stand for Really Simple Syndication. It is a method for website publishers to syndicate their content.
Recently many websites have evolved to become "feed readers", so you can subscribe to the RSS feeds of sites you frequently visit and track them on a single page. This method can save you time because you only have to visit one page to read all the news you are interested in.
As a website publisher, you may want to encourage others to subscribe to your feed. Many of the large websites now have unique subscription buttons. These buttons are widepsread and easily identifiable. This website will let you enter your RSS/XML feed url and create the code needed to add the subscription buttons to your site.