Here are some links from my applied CS past.
A language that doesn’t affect the way you think about programming, is not worth knowing.
— Alan J. Perlis
Implementations: GHC, Hugs 98, nhc98.
Tutorials:
Implementations: SWI-Prolog, GNU Prolog, Ciao.
Implementations: SML/NJ, MLton.
Implementations: PLT, SCM, Elk, MIT/GNU Scheme, Gambit, CHICKEN Bigloo.
Implementations: CMUCL, SBCL, Clisp, GCL.
Curry is an experimental functional logic programming language, based on Haskell.