This is an encore presentation of an episode from June, 2011
Steve talks about Pottermore misconceptions, how Rowling changed the online world once before, cool and interesting sources of canon information, Galleons changing the world, the late Quidditch match in book one, and other bits of Potter lore.
Links:

* Harry Potter for Writers blog about Pottermore, including screen shots and a link to the video
* HP Lexicon sources: The Daily Prophet Newsletters
* HPL: Galleons, Sickles, and Knuts
* HP Lexicon essay: Wizard Money
* HPL: Reader’s Guide to Harry Potter and the Philosopher’s Stone