I've already read most of the blog posts that make up the bulk of this book, but I'll still be buying the book to support Axel's work, and you should too. You won't be disappointed.
I used this book http://shop.oreilly.com/product/9781782161820.do when learning AngularJS. It's by no means perfect, but it covers doing a lot of things in Angular and building a full SPA in the process. As far as good open-source examples, I'm not sure, but I'll be keeping an eye on this.