This is my response to the first week of class. The title of this post is the question I have to answer.
So-how would I use this in my library? Well I know perfectly well that you can create a fabulous website with blogging for news articles. Possibilities include to signing up for a Google news feed, an AP Medical Feed or a search on the faculty at your institution for new publications. That way your users would be seeing new content all the time without you doing a thing.
How could my patrons use it? I have had interaction with students where they were concerned about signing up for email alerts because they thought it would fill up their boxes. Using a reader could make a big difference to them. I have talked to my boss about doing a RSS training next fall.