I think the idea of a "book discussion page" where readers and the author can interact is very promising. In the past I've used an etherpad to "live chat" and

I think the idea of a "book discussion page" where readers and the author can interact is very promising. In the past I've used an etherpad to "live chat" and collaborate on problems with students (e.g. https://piratenpad.de/p/linearalgebra https://piratenpad.de/p/linearalgebra ), but I think a forum dedicated to the book would be more interesting. It's a win-win situation: the author benefits from receiving feedback from readers, and readers can connect with like-minded people. Excuse me while I go learn how to install discourse with MathJax support ;) > use drip emails to track your progress through a book, Yes. This would be awesome as it might push you to read the book, but it would have to be done intelligently to work. Just a nagging reminder prodding you to read won't do it. Maybe receiving a weekly batch of exercises or review questions?