Functional Programming Languages

• Current Languages
• Research

• Clean@
• Erlang@
• Haskell@
• Lisp@
• Logo@
• Lua@

• Mathematica@
• ML@
• Refal@
• Scheme@
• Spreadsheets@
• Tcl-Tk@

• Computers: Programming: Languages: APL 
• Computers: Programming: Languages: Logic-based 

• Brief Survey of Functional Programming Languages  - Short history and review on different functional languages.
• Claus Reinke's Bookmarks: Functional Programming  - Wide resource of historical information of functional programming, and its applications and events.
• defmacro: Functional Programming for the Rest of Us  - Discusses history, definition, advantages, functions, evaluation and closures of the functional languages.
• Frequently Asked Questions for comp.lang.functional  - Answers queries on the aspects of the functional programming languages.
• Functional Programming In The Real World  - Lists applicable-to-real-world applications of functional programs.
• Joy  - Contains synopsis, FAQs, overview, library files, and related papers for functional programming language.
• Link  - Programming language provides link examples, sources, and papers.
• Linux Journal: The Rise of Functional Languages  - Introduction on related mathematical concepts. With comments from readers.
• Monads  - Archives documents explaining the basic tasks of Monads.
• Read Scheme  - Collects documents related to functional programming. Site is maintained by Jim Bender.
• What the Hell are Monads?  - Furnishes the reader with a background explanation to monads and monadic programming.