RSS, which stands for Really Simple Syndication, enables web publishers to distribute their content and for users to easily gather that content. RSS makes it possible for you to subscribe to some or all of a website’s content and have that content automatically delivered as text, audio or video.
To get syndicated content, you need two things: a reader and a feed. Here are 3 simple steps:
An RSS reader can be:
It doesn't really matter which kind you pick. Each of these work a little differently and have different feature sets, but at heart, they are all designed to do the same thing: You use an "add" or "subscribe" button to choose to receive a site's content via RSS, and then check back later to see what that site has published.
From then on, every time you check your RSS reader, you see all of the stories that site has published, but in more minimal form. Often, you'll just see titles, dates, and a couple of lines of text representing each story. You click the titles to see the full story.
A video podcast is similar to an RSS feed, except instead of having headlines delivered to you, a video podcast is automatically downloaded as soon as it is released. For example, if you subscribe to the Mosaic podcast through iTunes, each time a new episode comes out, it will automatically be downloaded to your iTunes library.