For a few years, flickr has been tagging some photos as interesting, calculated in a variety of ways including
Where the clickthroughs are coming from; who comments on it and when; who marks it as a favorite; its tags and many more things which are constantly changing. Interestingness changes over time, as more and more fantastic photos and stories are added to Flickr.
The most interesting photos from the last 7 days are up in a seperate section, which changes on every load.
But those are just photos selected from the millions uploaded every... day? to flickr now. An alternative venue to view beautiful, arresting, or just plain interesting digital material can be found at www.ffffound.com an image bookmarking site that allows the blogosphere to pull together all that is best in interverse imagery. It changes from minute to minute. A great place to view, wonder, and explore.