One thing that helps alot is the various undergrad course syllabuses that have been given with emphasis on type systems and aspects of FP, immutability, segregating and strictly marking side effects etc.
also the Apress "Beginning Haskell" looks pretty good, tho the writing isn't perfectly clear. The example topics and sample code look good, and that's what mostly counts.
The books by Hutton and Simon Thompson ("Craft of FP" 3rd ed)are good intros as well. Haskell school of music is really good, but not sure for people who aren't versed in music topics (harmony/theory, composition, MIDI, DSP.
I like Hutton's book, it seems simple and elegant without the flair of LYAH (which is good too, don't get me wrong). I picked up the newer Beginning Haskell and it seems decent as well; it has a lot of material akin to Real World Haskell.
also (I think OP linked the #cabal anchor to highlight sandboxes and other cabal hygiene) take note of the 1.20 release, Dependency freezing and no relinking by default
http://shuklan.com/haskell/
http://www.cs.tufts.edu/~kfisher/teaching.html
https://www.inf.ed.ac.uk/teaching/courses/inf1/fp/ (P Wadler)
http://www.cs.princeton.edu/~dpw/cos441-11/schedule.htm
http://blog.davidterei.com/2011/10/stanford-haskell-course.h...
http://www.seas.upenn.edu/~cis194/
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also the Apress "Beginning Haskell" looks pretty good, tho the writing isn't perfectly clear. The example topics and sample code look good, and that's what mostly counts.
http://www.amazon.com/Beginning-Haskell-A-Project-Based-Appr...
The books by Hutton and Simon Thompson ("Craft of FP" 3rd ed)are good intros as well. Haskell school of music is really good, but not sure for people who aren't versed in music topics (harmony/theory, composition, MIDI, DSP.
http://www.amazon.com/Programming-Haskell-Graham-Hutton/dp/0...
http://haskell.cs.yale.edu/euterpea/haskell-school-of-music/