RSS stands for "Really Simple Syndication" and provides a syndicated "feed" of site updates to followers. Any website worth its salt has an RSS feed, these days - ours can be found here. Just because the feed is "really simple", doesn't mean sorting through all that data always is.
So what do you do with those oddly (un)formatted RSS feeds? You use them to bring content from all of your favorites sites into a single interface - or reader. At Geek | Chicago, simplicity and convenience reign supreme when it comes to Newsreaders. That's why we use Google Reader.
Last month, Mashable did a great bit on HOW TO: Get the Most Out of Google Reader, so we don't have to. Please enjoy!