Really Simple Syndication (RSS) is a XML file format designed to display news
from particular Web sites without having to visit the site. You can receive news
from any RSS-enabled Web site by subscribing to their RSS feed. RSS feeds are
typically represented by an orange icon like the image below.
Typically, the feeds are displayed as a series of headlines and brief
summaries with links to the source of the full text. Many Web sites offer several
RSS feeds for specific sections or channels of their site.