I did a lot of thinking about what I was going to say about what Lou Anders taught us. I decided that I really can't go into complete detail in a blog post.
I will say that it really comes down to a list of characters, interactions, and events that are satisfying to a reader. None of those are necessary, but will make your story better. He also spent time showing how the stories people love have most, if not all, of these elements.
He did mention that the primary source of his understanding about story and plot came from two books. They are Anatomy of a Screenplay, by Dan Decker, and My Story Can Beat Up Your Story, by Jeffrey Schechter.