RSS is a simple way to subscribe to updates from many web sites. It stands for "Really Simple Syndication". RSS is a family of "feeds" which contain news items, summaries of stories, or blog posts with web links to longer versions. News, information, and blogs can all be published in RSS. When a new article is posted, RSS feeds can automatically notify the user. This allows a web site's frequent readers to track updates on the site.
To subscribe to RSS feeds, you will need an RSS reader or aggregator. There are a number of free or low-cost online, desktop, mobile and Outlook--based readers available.
Examples of some free web-based aggregators include Newsblur, Feedly, and InoReader. Some free aggregator applications include Mozilla's Thunderbird e-mail program and Firefox web browser.