To be honest, the reason such content is rare, is because nobody wants to share it. I make more money from using my skills for myself, than from consulting or writing books. I was publishing stuff little by little, but time constraints made me stop.

Another point is that everybody wants to learn what works, but few people ever put it to practice. The only person I have ever helped that has actually paid attention is Dan Shipper. And it was mostly helping him with the Firefly landing page.