Happy Anniversary to Mickey Petersen and Mastering Emacs. Mickey has been posting really great material for a year now and we should all hope he continues. As I've said before, Mickey always has something interesting to say and I invariably learn something from each of his posts.
As an anniversary gift from him to us, Mickey has created a reading guide that serves as an index of sorts to the articles on his blog. Hop on over there and take a look, pick an area that interests you, and read some of the articles in that area. You're sure to learn something worthwhile.