Hi<p>I've recently switched from being a developer to a product manager, so from the triad of tech, design & business, I have a good background in tech.<p>Now, I don't know what I don't know. I'm seeking resources (books/blogs/blog posts/...) about the other two domains, which allow me to be an excellent product manager.<p>While I have a habit of checking Hacker News nearly every day for the last 8 years, what I appreciate the most is a community like Hacker News for product managers.<p>Thank you very much :)