Glad to see another fan of that book here :) That book is a “definite keep” for me, although chunks are coming out of the binding. The parts that retain the most significance to me are the amount of thought and design he put into web communities. I think this was because he was operating in an era (and coming from an era) where putting a community online in a “scalable” way was expensive and time consuming, so he thought through his goals and the potential ways to achieve them and the corner cases very thoroughly before coding. It also came from a time when, due to the newness of the medium and a shortage of expertise, there was an ethos of democratic education — the idea that anyone can learn this stuff. Even the ways he thought of web communities tended to involve peer education instead of just publishing for clicks.