Google Reader has been a useful tool for following site feeds (RSS or Atom) since it was first released, but not every web site has a feed. In other words, Reader has bee great for getting updates on blogs, forums and most news sites, it hasn’t been useful at all with static sites or sites that don’t offer syndication options.
While there’s also a little “change tracker” application niche out there, today Google decided to enter this field as well. You can now track any site’s changes with Reader.
So smart, so helpful – and boy, I’m glad I never wrote that “site change tracking app” that I had considered a while back.
[…] most useful if you want to be alerted whenever a specific page has been updated. For example, if you wanted to follow Google.org’s latest products, just type “http://www.google.org/products.html” into Reader’s “Add a subscription” field. Click “create a feed”, and Reader will periodically visit the page and publish any significant changes it finds as items in a custom feed created just for that page.
Update: There are some restrictions to be aware of:
Reader may not always detect updates to your content. Currently, only English-language content in HTML format is supported. In addition, updates to content in frames are not detected; nor are updates to content that requires sign-in to view.
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January 25th, 2010 
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Nice! One of my favorite photography sites (bythom.com) has been promising a feed “real soon now” for quite some time. Now the wait won’t be such a pain in the neck.