You can listen to Jean Shepherd himself tell the story of the "I, Libertine" hoax during a radio show here: http://blog.wfmu.org/freeform/2008/06/the-i-libertine.html It's 40 min long, but well worth it and hilariously funny. I've always been fascinated by this story, it speaks volumes of the world we live in and how people are easily influenced and manipulated.