* [Why Haskell matters](https://wiki.haskell.org/Why_Haskell_matters) <!-- <http://learnyouahaskell.com/introduction#so-whats-haskell> <http://scienceblogs.com/goodmath/2006/11/26/why-haskell/> <http://www.onlamp.com/pub/a/onlamp/2007/05/21/an-introduction-to-haskell---part-1-why-haskell.html> -->
* [Learn Haskell in 10 minutes](https://wiki.haskell.org/Learn_Haskell_in_10_minutes)
* [A brief introduction to Haskell](https://wiki.haskell.org/A_brief_introduction_to_Haskell) <!-- sister article to: http://www.cs.jhu.edu/~scott/pl/lectures/caml-intro.html -->
-* [Tour of the Haskell Syntax](https://web.archive.org/web/20100529023840/http://cs.anu.edu.au/student/comp1100/haskell/tourofsyntax.html)
-* [Walla Walla Tutorial](http://cs.wallawalla.edu/research/KU/PR/Haskell.html) <!-- <http://cs.wallawalla.edu/research/KU/PR/Scheme.html> <http://cs.wallawalla.edu/research/KU/PR/SML.html> -->
* [Quick Reference](https://wiki.haskell.org/Reference_card) | [Cheat Sheet](http://cheatsheet.codeslower.com/CheatSheet.pdf)
+* [Tour of the Haskell Syntax](https://web.archive.org/web/20100529023840/http://cs.anu.edu.au/student/comp1100/haskell/tourofsyntax.html)
+* [Walla Walla Overview](http://cs.wallawalla.edu/research/KU/PR/Haskell.html) (18 pp.) <!-- <http://cs.wallawalla.edu/research/KU/PR/Scheme.html> <http://cs.wallawalla.edu/research/KU/PR/SML.html> -->
* Wikipedia on
[Haskell](https://en.wikipedia.org/wiki/Haskell_%28programming_language%29) |
[GHC](https://en.wikipedia.org/wiki/Glasgow_Haskell_Compiler)
### Other ###
+* [Lambda Lessons](http://stevekrouse.github.io/hs.js), experiment with evaluating `map` and `fold` step-by-step
* [A Tour of the Haskell Prelude](http://www.letu.edu/people/jaytevis/Programming-Languages/Haskell/tourofprelude.html)
-
+* [Ninety-Nine Haskell Problems](https://wiki.haskell.org/H-99:_Ninety-Nine_Haskell_Problems), a collection of programming exercises
+* [Project Euler](https://projecteuler.net/), more programming challenges
### Advanced Docs, listed here for reference ###
* Formal language specs:
[Haskell 98](https://www.haskell.org/onlinereport) |
[Haskell 2010](https://www.haskell.org/onlinereport/haskell2010) |
-[Haskell'](https://ghc.haskell.org/trac/haskell-prime)
+[Haskell′](https://ghc.haskell.org/trac/haskell-prime)
* [Cabal](https://wiki.haskell.org/Cabal) package manager:
[User Guide](https://www.haskell.org/cabal/users-guide) |
[tool usage](https://wiki.haskell.org/Cabal-Install) |