An RSS feed is a format for delivering regularly changing web content. Many news-related sites, weblogs and other online publishers syndicate their content as an RSS Feed to whoever wants it. RSS stands for "really simple syndication".
Benefits to having an RSS feed is it solves problems for people who usually use the web and It allows you to easily stay informed by retrieving the latest content from the sites you are interested in. -http://www.whatisrss.com/