Jcon
A Java-Based Icon Implementation

Icon
Imperative, procedural, high-level, general purpose, many features for processing data structures, character strings, C/Pascal-like syntax, but far higher semantics. Has documents, books, implementations, libraries, Java-based Jcon.

Reducing Field Table Size in the Icon Translator
Technical report by Richard Hatch and Clinton L. Jeffery.

Hello, World Program
Classic test program, written in ICON.

Icon Tutorials
Information on many aspects of Icon programming

The Icon Handbook
PDF copy of the Icon Programming Language Handbook.

Unicon
A portable, high level network and graphics savy "modern dialect" descending from the Icon programming language with support for OpenGL, OOP features, POSIX support, and ODBC.

Ulex
A lexical analyzer generator for Unicon.