RSS (Really Simple Syndication) is a format for delivering regularly changing web content. In this instance job information.
RSS makes it possible for you to keep up with your favorite web sites in an automated manner that's easier than checking them manually.
RSS content can be read using browsers such as Firefox, Opera, Safari and Internet Explorer 7 or software called a "feed reader". The reader checks your subscribed feeds regularly for new content, and downloads any updates that it finds.
You can subscribe to a feed by entering the feed's link into the reader or by clicking the RSS icon in a browser that initiates the subscription process. Some browsers, including Firefox, Opera and Safari, automatically check for RSS feeds when you visit a website, and display an icon when they find one. This can make subscribing to feeds much easier.