| aapt.org | American Association of Physics Teachers (AAPT) |
| exploratorium.edu | The Exploratorium |
| edna.edu.au | Oz Projects - Online Projects For Teachers And Their Students |
| nyquist.net | Nyquist Art Logic |
| nashvillesymphony.org | The Nashville Symphony |
| tuskegeeairmen.org | Tuskegee Airmen Inc. |
| billofrightsinstitute.org | The Bill of Rights Institute |
| adpa.org | National Defense Industrial Association - NDIA |
| wcupa.edu | West Chester University Physics - Society of Physics Students |
| msphysics.org | Mississippi Association of Physicists |
| mcrel.org | www.mcrel.org/ |
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