Quantum Physics Online (Popularity: ): A series of Java applets illustrating solutions to basic problems in this subject. Eurotechnology Japan: Quantum Device Simulations (Popularity: ): Visualization and simulation of electron waves propagating through quantum device structures demonstrating solutions to the time-dependent Schroedinger equation Parity (Popularity: ): An overview of Parity in quantum mechanics and of the ways to break quantum mechanical symmetry. Physics Bookshelf - Quantum Mechanics (Popularity: ): A collection of articles explaining basic concepts in quantum mechanics. Quantum Physics (Popularity: ): A qualitative description of the key aspects, including Heisenburg's Uncertainty Principle, wave-particle duality and related theories. Virtual Journal Of Quantum Information (Popularity: ): This monthly virtual journal contains articles that have appeared in one of the participating source journals and that fall within a number of contemporary topical areas in quantum information. Quantum Optics and Foundation of Physics (Popularity: ): Pages and Links about Quantum Optics. Created by the group around Anton Zeilinger in Vienna. The EPR Paradox and Inequality Principle of Bell (Popularity: ): A short article from the USENET Physics FAQ. Quantum Communication (Popularity: ): A short introduction titled "Quantum communication moves into the unknown" by David Deutsch and Artur Ekert. Quantum Physics Primer (Popularity: ): Describes some basic concepts of quantum physics.