Artiste Company - Commercial site offering software for Quantum Computer simulation and simulation of other quantum mechanical behavior.
Bibliography on Quantum Programming Languages - Bibliography by Simon Gay gathering references to papers about theoretical aspects and implementations of quantum programming languages.
LanQ Quantum Programming Language - LanQ is an implementation of an imperative quantum programming language supporting execution of multiple processes in parallel.
libquantum - A C library for the simulation of a quantum computer. It provides all important operations and the simulation of decoherence effects.
QCL - Quantum Computation Language - Documentation and the source code for the QCL, high level, architecture independent programming language for quantum computers.
Quantum Computer Emulator (QCE) - A Windows based simulator of quantum computer hardware. Provides an environment to execute quantum algorithms under realistic experimental conditions.
QuCalc - Library of Mathematica functions whose purpose is to simulate quantum circuits and solve problems of quantum computation.