Try Haskell
These always make me think of _why.
Tag: haskell 
Tag: haskell
These always make me think of _why.
Bob Ippolito's single-step Mac OS X Haskell installation.
Brent Yorgey's course on Haskell. Chris Allen's recommended way of learning Haskell.
After going through it a bit, I found some problems and progress slowed, then halted. I'll bet it's great when you take the course...the lecture notes are not enough for self study.
I personally would recommend Learn You a Haskell to dip toes in, then look for the next step.