Re: [Haskell-cafe] Design in Haskell?

Are there any suggestions of wikis, books or particularly well-architected and readable projects I could look at to about learn larger-scale design in Haskell?

I've recently found Brent Yorgey's The Typeclassopedia very helpful. You can find it in The Monad.Reader Issue 13. It's similar to Design Patterns in that it lays out all the basic patterns (type classes in this case) and shows how to properly use each one.