STOP PRESS
I've gone off books a bit lately - I'm more of a Fifa man myself now - but earler this year I was contacted by a nice chap from Australia by the name of Simon Sellars, who is writing a book for Lonely Planet all about Micronations.Exactly what a Micronation is, I'm not 100% sure, but according to Simon the Copeman Empire qualifies and it'll be making some kind of feature when the book gets published in September.
You can pre-order your copy now from Amazon (but Andrew's advice is to "wait 'til they have it in Sheringham Library and photocopy it").