-Making monads nest
-* [Monad Transformers Step by Step](http://www.cs.virginia.edu/~wh5a/personal/Transformers.pdf)
-* [Grok Haskell Monad Transformers](http://sigfpe.blogspot.com/2006/05/grok-haskell-monad-transformers.html)
-
-Links to Category Theory
-* [The Haskell Programmer's Guide to the IO Monad](http://doc.utwente.nl/53411/1/00000154.pdf)
-
-* [Quick Introduction to IO](https://wiki.haskell.org/Introduction_to_IO)
-* [Tackling the awkward squad](http://research.microsoft.com/en-us/um/people/simonpj/papers/marktoberdorf/mark.pdf): monadic I/O, concurrency, exceptions, and FFI in Haskell
-* [IO inside](https://wiki.haskell.org/IO_inside)
-* [A tour of the Haskell Monad functions](http://members.chello.nl/hjgtuyl/tourdemonad.html)
-* [What the hell are monads?](https://web.archive.org/web/20040404212440/http://www.abercrombiegroup.co.uk/~noel/research/monads.html)
--->
+* A Not-So-[Gentle Introduction to Haskell](https://www.haskell.org/tutorial) (64 pp. tutorial from 2000, expects some prior knowledge of functional programming)
+* [Haskell Tutorial for C Programmers](https://wiki.haskell.org/Haskell_Tutorial_for_C_Programmers) (45 pp.)
+* [How to read Haskell](https://wiki.haskell.org/How_to_read_Haskell)
+* [Hitchhiker's guide to Haskell](https://wiki.haskell.org/Hitchhikers_guide_to_Haskell) (33 pp.)
+* [Write Yourself a Scheme in 48 Hours](http://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours)
+* Comprehensive List at [Haskell Wiki](https://wiki.haskell.org/Tutorials)