This concept is so powerful that it is now being picked up and used by the largest players in the Internet news space such as Yahoo!News. It is also used by many blogging services such as Google’s recently acquired Blogger (actually, it uses Atom, but it is essentially the same thing) to keep their loyal readers up to date with new additions to the blogs. 

In other words, the format is growing in leaps and bounds, driven not only by the biggest sites on the Web, but also by the cultural wildfire known as the blogosphere.

In the old days, when a Web site had a new update they wanted people to know about, it meant sending out an email, or using an email newsletter. The problem is that in today's day and age, with many people getting hundreds of spam messages a day, people are block deleting much of their email--including messages they actually asked to receive. 

Now, with RSS, it is possible to simply update your website, and the RSS readers that people have installed will automatically tell them an update has happened, what the update was, and give them the ability to quickly and easily surf to your site. No more email, no more worrying if the email you sent even reached the person.

Further, all of that doesn’t even count the ability for other webmasters to add your content to their site with no muss and no fuss (again, syndicating your content across the web).