ABOUT RSS FEEDS
RSS is a convenient way to be alerted when new content appears on a web site.
By clicking on the RSS icon on a web page, you are accessing the “live feed” of content for that portion of the site. This live feed can be plugged into an “RSS Reader” (Google Reader, Bloglines, etc...) where you can then quickly access new content from all of your RSS feeds. It takes a little time to get used to, but in the end you can save a lot of time searching around for new content.
More information can be found here: http://reviews.digitaltrends.com/guide/35/how-to-use-rss