I'd say that people often reference intermediate Haskellers to a number of major papers like Data Types A La Carte or the Typeclassopedia. The entire set of Fun

I'd say that people often reference intermediate Haskellers to a number of major papers like Data Types A La Carte or the Typeclassopedia. The entire set of Functional Pearls are released in academic paper form and provide a really wonderful glimpse into "advanced" Haskell style. You also would probably want to take a look at many of the things that Jeffrey Gibbons or Oleg Kiselyov have written. I could think of others if I dedicated some time to it, but those come up fairly frequently.