Track Changes to Privacy Policies and Any Webpage with Google Reader

The Google Reader team recently announced that Reader now allows you to follow changes to any web page, even if that page doesn’t support RSS.  I am a heavy Google Reader user (particularly on my iPhone) and this is a great tweak that has some interesting applications.  For example, eBay sellers could subscribe to eBay’s User Agreement to keep track of any updates that might impact sellers’ businesses.  Or, Facebook’s most recent privacy dust-up might motivate others to create a subscription to Facebook’s Privacy Policy.  Journalists probably have the greatest use for this feature, enabling them to track everything from TOS changes to new product launches, site redesigns, etc.