RSS, can be expanded as Rich Site Summary or Resource Description Framework Site Summary or Really Simple Syndication. RSS is a lightweight XML format for distributing regularly changed web contents among different web sites and users. A Web site can allow the users or other sites to publish some of its content by creating an RSS feeds.
Benefits of RSS Feeds
RSS allows the users to easily stay informed by retrieving the latest content from the sites they are interested in. It saves time by not needing to visit each site individually. It also ensures the privacy of the users by not needing to join the site's email newsletter. The number of sites offering RSS feeds is growing rapidly and includes big names like Microsoft and Asp.Net websites.