I know that post title has you on the edge of your seat, ready for a wild and exciting ride through the ins and outs of copyright law. Alas, the post is not here, but rather here on Black Gate: http://www.blackgate.com/2011/07/30/register-your-interest-copyright-for-paper-and-e-books/
Even more exciting? John O'Niell directed me to post it without waiting for his authorization! He's on travel, so this means it unadulterated Emily Mah analysis of copyright law. What are you waiting for? John gets back in a couple of weeks, so read it while you can!