What is RSS in a site?

What is RSS: "Really Simple Syndication" or other wise called as "Rich Site Summary" . How to stay with a site, how to keep updated yourself with a site. No problem when ever there is a update in a site you will be notified. There are Live bookmarks and Email notifications and many more so you can really stay connected. I have also given you a option to stay connected with our site. Please make a email subscription and follow us.