RSS stands for "Really Simple Syndication". You can subscribe to these and get updates (feeds) delivered straight to you. You'll no longer need to constantly visit the same websites for new information!
RSS readers allow you to subscribe to multiple feeds and provide a one-stop summary of all new content available on the sites you've subscribed to. You can subscribe to a feed by using the link we provide and placing it into your reader. To do this, cut and paste or drag the feed URL/link into your RSS reader.
No problem - feed readers are free, online applications. Try Google Reader or Apple's iTunes to get you started. Otherwise, simply search for "RSS readers" and follow your nose.