RSS feed is called as Really Simple Syndication. It is a news feed through which you can get updates or notifications whenever the latest news of your field of interest arrives. You get all these updates by subscribing RSS feeds.
Once you get RSS reader, you get the facility of reading the subscribed news of your interest. This news can be of anything, of any product, service or anything else. RSS reader is a tool that enables a user to read RSS feeds to which he got subscribed. RSS reader collects the information in the background and alerts you about a message. It notifies you whenever a new message arrives. You can see a short description of that news by clicking on the headline of that news. It is a freeware means freely available.
RSS feed is very beneficial for the web content providers, as by using it they can widely circulate their content among the masses. Having an RSS feed provides benefit to you, it generates high traffic and if people find your content or information interesting and useful, then they visit your site whenever they get alerts by RSS reader. RSS feeds are very useful for both the site owners and users. Users get daily updates about the news of their interest. Website owners get regular and high amount of traffic to their sites.
RSS feeds can be downloaded even on iPods using iPod Agent. It is software through which RSS feeds can be read.