I've now released video courses on the site, things are going very well revenue wise, and I'm on a steady path of much further growth. I honestly don't know what would have happened had I not read Authority back when I did.
Very inspiring to see what you've done with Convertkit, and it's making me consider more direct sales.
p.s. Here's an early writeup you did, in case you don't remember. http://nathanbarry.com/authority-case-studies/