RSS stands for Really Simple Syndication (or Rich Site Summary, or RDF Site Summary, depending on who you ask). It is an XML-based computer format that is becoming more and more popular each day. Basically, RSS is a way to distribute news, headlines, and other content throughout the internet.
TakeGreatPictures.com provides an XML document for each new article that is posted to the site. If you have an RSS READER or AGGREGATOR (like Google Reader or Feedreader), you can receive news of the latest headline posted to the site. Not only can you do this for TakeGreatPictures.com, but you can do it for all your favorite websites, like Wired.com, NYTimes.com, your favorite blogs and more. Essentially, you can create and customize your reader to pull the content you want from all over the internet. It's like creating a digital newspaper just for you!
To find out more detailed information about RSS, take a look at the following links: