Georgia Department of Education
Ga Virtual Learning: Magnetism and Current Carrying Wires
In this interactive tutorial students will explore how a magnetic field affects a current-carrying wire and also how two current-carrying wires affect each other. They will learn about Biot-Savart, Ampere's Law and the magnetic field...
Wolfram Research
Wolfram Science World: Magnetic Permeability
This site defines magnetic permeability in terms of magnetic fields, and relates magnetic permeability to magnetic susceptibility and relative permeability.
Wikimedia
Wikipedia: Permeability
This site from the encyclopedia Wikipedia provides a concise definition of magnetic permeability given in terms of magnetic flux density and magnetic field strength.
Tech Target
Whatis.com: Permeability
This resource defines magnetic permeability and then describes how it is used to classify materials as diamagnetic, paramagnetic, or ferromagnetic.