RSS Feeds

So the RSS feeds make checking all the things I normally do abnormally fast. I really like being able to check sites updates all on one page. It really is a time saver. It's a pity that it isn't available on all websites yet. How this could be used in the library? I think it might be neat if it could be incorporated into the updates of the catalog. So that every time a new item was added it could be noted. I don't think it's possible that RSS feeds can be used that way but I don't know.