The great thing about Flickr are the photo tags. Not only do these tags describe photos, but you can “subscribe” to an RSS or Atom feed of a tag. When someone uploads a new photo to Flickr using the subscribed tag, then it will show up in your feed reader. In my case, I subscribe to the “golden retriever” tag using bloglines.
If you flip through the “golden retriever” tag, you’ll eventually see photos of Fry.
You can subscribe to all kinds of tags, like “Prince Rupert” — just replace the last part of the URL.