Jenny, the Shifted Librarian, has linked to her April 9 PowerPoint presentation, Keeping Current Using RSS, from the 5th Annual Government Information Locator Service (GILS) Conference. She also provides a link to an informative workshop outline, Publish and Syndicate Your News to the Web, by Ray Matthews, and to an RSS Feed Reader/News Aggregators Directory.
See also this new guide, Explanation of RSS, How You Can Use it, and Finding RSS Feeds, by Michael Fagan (a Canadian high school, soon to be university, student and uber-web/tech prodigy). You may also want to take a look at Content Syndication with RSS.