RSS is an alternative view of a web page that allows you to subscribe and read 
the content in RSS newsreader software. Whenever the web page is updated your newsreader will automatically display the new item.
There are many news readers available and many are free. Some news readers are programs you download and install on your computer and others are web-based services that you access with your web browser.
There is a list of RSS readers maintained at DMOZ Open Directory Project. These programs have 'Help' sections, so follow their instructions for more information.
To subscribe to an RSS feed, right-click on the RSS icon — and select 'Copy Shortcut' or 'Copy Link Location' to copy the location URL and then paste it into the appropriate place in your RSS reader; or click the RSS icon in your browser's address bar for more options:
CATS News
CATS Events
CATS Articles
CATS WebLinks
CATS Fact Sheets