Here is a list of topics I've ripped off of articles in the first 5 pages of Google returns for "Quantum mechanics":
Albert Einstein
Amplitude squared and probability
Bell's Theorem
Black body radiation and Planck's radiation law.
Black Hole
Bohr Model of the Atom
Causality in Quantum Physics - Thought Experiments & Interpretations
Complementarity & Copenhagen Interpretation
Compton Effect
Copenhagen Interpretation
De Broglie Hypothesis
Deterministic Quantum Teleportation
Development of Quantum Mechanics
Double Slit Experiment
Earliest Findings
Elementary particles behave both like particles and like wave.
Energy is not continuous, but comes in small but discrete units.
Entanglement
EPR Paradox
Heisenberg Uncertainty Principle
It is physically impossible to know both the position and the momentum of a particle at the same time. The more precisely one is known, the less precise the measurement of the other is.
Locality and Quantum Mechanics
Major Figures in Quantum Physics
Major Findings - Experiments, Thought Experiments, & Basic Explanations
Many Worlds Interpretation
Max Planck - Biographical Profile
Max Planck Formulates Quantum Theory
Movement of quantum particles is inherently random.
Niels Bohr
Photoelectric Effect
Quantum Chromodynamics
Quantum electrodynamics
Quantum interference
Quantum Mechanics: Interpretations
Quantum optics
Quantum Physics - major experiments
Quantum Physics - related articles
Quantum Physics - subfields and theories
Quantum Teleportation
Richard Feynman
Schrödinger equation
Schrödinger's Cat
Stern-Gerlach Experiment
The atomic world is nothing like the world we live in.
Thermodynamics
Two analogies to Bell's Theorem
Tying Up Loose Ends: Topology Swallows Quantum Computing
Unified field theory
Wave-particle Duality
What are the Fundamental Forces of Physics?
What does quantum mean
What is Quantum Entanglement
What is quantum mechanics
What is Quantum Physics
What is Special about Quantum Physics
What's special about quantum mechanics
Who Developed Quantum Mechanics
Why developed
Young's Double Slit Experiment