Mappr takes advantage of the cornucopia of descriptive information provided by Flickr's users to organize their photos.

Flickr's admirable policy of openness with its data provides a way to anticipate and envision a future where cheaply-available GPS technology generates this placement as a matter of course.

There's no reason to wait for this technology to become common; by mapping the millions of photos that Flickr makes available, we can start looking at its broad scale potential now.