Say what?  I can only think of a million ideas for this…heck, I’m not so sure you couldn’t build a CMS out of this concept.  (http://www.niallkennedy.com/blog/2005/12/google-reader-api.html)

Google Reader is an online feed aggregator with heavy use of JavaScript and pretty quick loading of the latest feed data from around the web. Google’s AJAX front-end styles back-end data published in the Atom syndication format. The data technologies powering Google Reader can easily be used and extended by third-party feed aggregators for use in their own applications. I will walk you through the (previously) undocumented Google Reader API.

This could be an interesting development…now I just need more time.