RSS is an easy way for you to automatically get updates from websites.. Instead having to go to websites to see if they've added a new page, you can use RSS (which is short for Really Simple Syndication) to be told whenever they have something new.
You need to get hold of a program called a news reader. This displays your chosen RSS news feeds on your computer. After you've installed the software you then choose which RSS feeds you want, for instance the RSS feed from the Diocese of Westminster.
There is a variety of different news readers available for PCs and Macs.