I constantly add new sections. I might not be "every week" or even "every month", but if the last time you saw it was 2017, there's a whole lot of content that

I constantly add new sections. I might not be "every week" or even "every month", but if the last time you saw it was 2017, there's a whole lot of content that you haven't seen before. This is a living online book, and there's more to write on the subject. Every time you see a link for it on HN, it's probably because I wrote a new section, and a lot of people discover the internet that weren't on it one or two years ago. This content is evergreen =)