RSS, which stands for Really Simple Syndication, is a Web tool that makes it easy to share online content. You can subscribe to an RSS feed to automatically receive the content you want, rather than visiting multiple Web sites or viewing dozens of pages.
You need an RSS reader, such as Live.com or others. RSS readers let you find and subscribe to feeds. You can even find, add, and read the content in an RSS feed right in Microsoft Outlook 2007. Learn more.