RSS is an information feed format used to publish frequently updated content. RSS makes it possible for people to keep up with web sites in an automated manner that can be piped into special programs, like RSS readers, or e-mail clients. The RSS reader checks the user’s subscribed feeds regularly for new content, downloading any updates that it finds and provides a user interface to monitor and read the feeds.
If you’re familiar with RSS feeds, then click the RSS icon to subscribe! If you’re new to RSS feeds, try using Google Reader, or see if your e-mail program supports instant notification using RSS.