[jvanenk]

Haskell has marvelous concurrent constructs. It's actually one of the few places where I end up thinking "wow, I'm glad I get to use threads here" and I'm not thinking it sarcastically.

http://hackage.haskell.org/packages/archive/base/4.6.0.1/doc...

http://hackage.haskell.org/packages/archive/stm/2.4.2/doc/ht...