Introductions to advanced Haskell topics

Many people bemoan the sharp divide between experts and beginning Haskell programmers. One thing I've noticed is that "advanced" Haskell topics all have one thing in common: there exists only one good tutorial on that topic and only the experts have found it. This post is a collection of links to what I consider to be the definitive tutorials on these topics. Monads Monads are technically not an a

[LaclefYoshi]

モナドから割と新しめのトピック

[igrep]

Really helpful! Thanks!

[tanakaBox]

高度な話題のリンク。

[h-hirai]

このへんなー。すごいひとたちがすごいっていってるからすごいんだろうけどなにがすごいのかすごくないじぶんにはよくわからないんだよなー。

[r-west]

各トピック定番チュートリアルリンク＆解説集

[tanakh]

(´･_･`)よさそう