Nicely informative. I did not know about the Catholic Church's attempt to require licensing in order to control what was printed. Reminds me of some of the recent efforts to hand control of the Web to media companies through draconian legislation (SOPA/PIPA.)
I agree with the sentiment expressed elsewhere that the World Wide Web is causing a shift just as great as that of the invention of the printing press. More than ever, the barrier against each person having a voice is shrinking (for good and ill.) This site alone is proof of that. And just like with the printing press of old, the power of the long-entrenched is being challenged.
Perhaps a magical equivalent to the Web rather than a printing press could be used to evoke similar upheavals in a fantasy world.