RSS (Rich Site Summary) is a format which enable you to receive new articles which publishing on the site without the need to visit the site regualary.In order to read the articles you need RSS Feed Readers and News Aggregators. Feed Reader or News Aggregator software allow you to grab the RSS feeds from various sites. A variety of RSS Readers are available such as: Feedreader.com Newsgator.com and Google.
Another option if you have explorer 7.0 is to click on the RSS button and to follow the instructions. This will grab contents to your computer. You can suscribe to these feeds: