The RSS Titanic

I looked at the RSS search tools but I can't comment much on the search, because I don't have any favorite sites to search for or anything, sooo, yeah. As for how patrons could use RSS, I think there would be interest in subscribing to feeds from their favorite authors, so when a new book is about to be released, or to be added to the catalog, they could know right away. Other than that I have no ideas.