Here are the external references and blogs to this book:
- http://codecondo.com/3-free-books-for-learning-angularjs/ - see 2/3rds down
- https://github.com/jmcunningham/AngularJS-Learning - In the books section
- http://angularjs.io/list-of-anuglarjs-books-reviews-to-follow-shortly - At the end of the 'list to review'