What are some resources to learn advance haskell and good practices and design patterns in haskell

I Have been using haskell for past 4 months now and i am quite comfortable with the language but one thing that keep bugging me is the thought that "is this the haskellish way of doing things ??", now i want to learn more advanced topics in haskell and at the same time i want to learn more about haskell design patterns and good practices, so please suggest the resources for that blogs, books etc anything.