RSS ("Really Simple Syndication") is a way to be notified of new content on a Web site, thus avoiding the need to revisit to check if new content has been added. Users add RSS feeds to their feed readers and newly added content appears in the feed reader whenever it is posted on the Web site. Seeing how users usually subscribe to multiple feeds, the feed reader is an aggregator that allows the user to read all of their feeds from one convenient spot.

RSS feeds are streams of data that offer a list of articles on a site or section of a site and update whenever new, relevant information appears online. Through the use of a news reader or Live Bookmark that processes RSS feeds, you can view headlines and article excerpts from multiple sources, all in one place.