It is my pleasure to announce a new book on functional programming available on this site - Introduction to Functional Architectures. The main feature of this book is that it follows the development of a real application, commit by commit. The preview of the first few chapters is available for free!
Also, I'd like to introduce two sister sites to FunctorHub: FunctorBlog and FunctorForum. We will be publishing articles on functional programming in the blog from time to time. Forum is the official means of discussing courses. Also, the intention is to create a community around learning functional programming - there is a dedicated section in the forum where you can discuss the problems you encounter.
Hope you will enjoy the updates!