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flickrcameras.jpg
a collection of simple line graphs that represent the number of Flickr members who have uploaded at least 1 photo with a particular camera on a given day over the last year. the graphs are normalized, in that they automatically correct for the fact that more people join Flickr each day. the graph moving up or down indicates a change in the camera's popularity relative to all other cameras used by Flickr members.

[link: flickr.com|via kedrosky.com & datamining.typepad.com]