Aside from the article's content, I really like the inline exercise for the reader with the hidden/expandable answer section. It's fun and it successfully got me to read the proceeding section more closely than I would have otherwise.
Same; it was a very easy question once you actually read the previous section instead of just skimming over it. :D
Same; it was a very easy question once you actually read the previous section instead of just skimming over it. :D