Other Programming Languages

This is the foyer for less commonly used languages that have presence in ProgrammingLand.
Choose from the following:
a) LambdaMOO script, the programming language of this MOO
b) LISP, the main language of Artificial Intelligence
or
x) Return to the Language foyer

Links:
LambdaMoo Programming Language Foyer
LISP Foyer
Language Foyer