Half a Century Later...

The first digital image was created 50 years ago this spring at the National Bureau of Standards (now known as the National Institute of Standards and Technology, or NIST). It was a very small scanned photo of researcher Russell Kirsch's 3-month-old son Walden.

That was the first step in a journey that has led to on-line photo-sharing sites like flickr and to high-resolution aerial photography and to citizen journalism and an on-line explosion in the arts.

Of course, it also led to pervasive digital pornography and photo-shopped political frame-jobs.

But you take the good with the bad.