Article about RSS technology. RSS = Rich Site Summary. RSS is a special format based on XML, which was first used to unite headers with web content. In fact, RSS feeds are XML files containing data according to the RSS specification, and usually located on a website. Once info about each item is in RSS format, an RSS-aware tool can check the channel for changes and react to the changes in an appropriate way. RSS as introduced by Netscape Inc. In 1999 then later abandoned in 2002 stood for 'Rich Site Summary'. RSS formats are specified using Extensible Markup Language, a generic specification for the creation of data formats. Moreover, Really Simple Syndication is a easy and free way to promote web-site. Special computer programs called 'RSS readers' have been developed that automatically access the RSS feeds of websites.