Befunge "Hello, World" Program: Three-line chunk of source code written by Tim Gilbert.
Befunge CPAN Module: Official Perl extension for interpreting Befunge.
Cat's Eye Technologies' Befunge-93: The official web site for the Befunge-93 programming language; maintained by Chris Pressey, the creator of Befunge.
Dictionary of Programming Languages Befunge Page: Brief language fact sheet, complete with links to conceptually related languages.
Dufflebunk's: Two Funge implementations. JavaScript Funge: Funge-98 in JavaScript. Object-Oriented Funge.
Funge-98 Final Specification: The official specification for the 1998 revision to Befunge-93.
Mooz's Befunge Programs: A number of programs written in and related to Befunge. Includes an interpreter for the TI-86 calculator and an example of how to do floating point division in Befunge.
Ninety-Nine Bottles of Beer: Befunge version of the infamous beer song program.
Tim's Befunge Compiler: This "pseudo-compiler" will create an ANSI C program from a Befunge-93 source file. Programs can still be self-modifying even after they are compiled.
VSync's Funge Stuff: Features a portable Befunge-93 pseudocompiler and several other compilers and interpreters. Demonstrates how to use Befunge as a CGI scripting language.
Wierd: Absolutely sick Befunge-descendant language.
Yabi93: Yet Another Befunge93 Interpreter, for the esoteric programming language, coded in Java 1.5, uses Swing for graphical interface. YABI supports a multilanguage GUI.
ZBefunge: A Befunge-93 interpreter written in Inform, and runnable on just about anything.