Schroedinger's Cation
- Physicists prove that an atom can be in two different places at once.
- http://www.sciam.com/article.cfm?articleID=000AAB4F-7BC2-1C76-9B81809EC588EF21

Bell's Theorem
- An overview of Bell's Theorem and its applications in quantum mechanics.
- http://faraday.physics.utoronto.ca/GeneralInterest/Harrison/BellsTheorem/BellsTheorem.html

Einstein-Podolsky-Rosen Experiment
- A simple overview of the EPR thought experiment which was thought to contradict Heisenberg's uncertainty principle
- http://www.treasure-troves.com/physics/Einstein-Podolsky-RosenParadox.html

EPR Paradox
- Another site describing the EPR Paradox.
- http://roxanne.roxanne.org/epr/einstein1.html

The EPR Experiment
- A somewhat technical review of the EPR paradox and the Aspect experiment which was designed to test it.
- http://roxanne.roxanne.org/epr/eprS.html