ADP is a script language designed for Web database prgramming.
ECLiPSe Constraint Logic Programming System
The GNU Prolog native compiler
A Database System for Metamodeling and Method Engineering
Heavily Xchat inspired beautiful irssi theme
Implements the stable model semantics without grounding.
Java Internet Prolog (Moved to GitHub)
Goal-directed answer-set programming
Constraint Logic can solve word logic puzzles.