What is an RSS feed?
RSS (Really Simple Syndication) is a way to deliver regularly changing content from a website to anonymous subscribers. Websites usually offer RSS feeds for press releases, upcoming events, a blog, and other areas of the site that add new information often. The RSS icon, shown at right, is used to show where an RSS feed is available.
How do you subscribe to an RSS feed?
Website visitors can subscribe to receive updates about new pages added to the site using an RSS/News Aggregator application. Many "RSS reader" apps are free or built into other apps, such as Microsoft Outlook. To subscribe, you just add the address (URL) of the feed to your RSS reader. The feed page itself usually includes a "subscribe" button.
How often are updates released?
An RSS reader setting lets you control how often you want your app to check the website for updates. If a new page has been published since the last time the RSS reader checked the site it will show you the new page or pages.