Would you like a simple, concise and charming introduction to RSS? If so, check out this rather lovely video from the folks at Common Craft. Its actual title, RSS in Plain English, doesn’t do it full justice. It’s visual enough that I think that it would still be worth watching if you don’t speak English, or if you have to have the sound off.
By the way: I still think that RSS should stand for Relatively Simple Subscription; I saw the link to this video in the WordPress.com forums; and yes, I did use RSS and charming in the same sentence.