What is RSS?

Perhaps the terms "aggregator," "autodiscovery," and "feed" are part of your daily lexicon, but I am to understand that as few as 10% of Web users even know what RSS is or what to do with those orange XML chicklets. And worse, clicking on one usually results in a page full of confusing source code or the browser prompting you to download the file. These are not good results for visitors that are new to RSS. So, even though the target audience of loadaverageZero are Web developers, who presumably understand RSS well enough, I felt it was important to author a document that describes RSS in layman's terms, and explains how visitors can subscribe to my feeds.