RSS (Really Simple Syndication) is a convenient way to keep up with new information, from websites to news services to table of contents of your favorite journals as well as podcasts and vodcasts.
Once you have set up an account with a feed reader, just copy and paste the feed link to start receiving content. Often it ends with XML (eXtensible Markup Language) and you'll often see this icon .
Watch a short RSS videos to learn more: RSS in Plain English (3.5 min each).