I'd like to share another recipe. This one is a little peculiar. Instead of fetching a list of articles from an RSS feed or a web page, it uses the list of unread items in Safari's "Reading List." It is therefore compatible only with Mac OS X (and probably just 10.7).
(Reading List basically helps you bookmark articles you want to read later. It's bit like Instapaper, but not as sophisticated, and built into the browser. It can sync across computers and iOS devices using iCloud.)
The recipe and more details are available at GitHub:
Please be sure to read the "Limitations" section of the Readme so that you understand what this recipe does and does not do. It's basically a proof-of-concept. Feedback is of course encouraged!