RSS is basically a file format that delivers updated content from websites to anyone who subscribes to it. It's like subscribing to a newspaper, except you can customize what you want to read!
To subscribe to our feed, you'll need a feed reader. There are feed readers that you can use via a web browser and some you can download and install like other programs on your computer. Take a look at the sidebar on this page to see some of our 404ers' recommendations.