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.
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.
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.