That's the best part about RSS. You can subscribe to RSS feeds from all your favorite RSS-enabled websites, and then your RSS reader does all the work grabbing updates and letting you know when any of the sites have changed. Usually, an RSS feed contains article titles plus a couple short lines of content for each. Good RSS readers will even pull full content in to save you from browsing to each new item.

Here's some more details about RSS.

Apologies to Amie for the derail...