Azom.com: Neodymium: History, properties and applications of the element.
ChemGlobe: Neodymium: Electronic, thermal, and steric data along with an isotope table.
ChemicalElements.com: Neodymium: Basic information, atomic structure, and isotopes.
CorrosionSource.com: Neodymium: History, properties, uses, and physical information.
EnvironmentalChemistry.com: Neodymium: Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Neodymium: Basic physical and historical information.
LANL: Neodymium: History, production, properties, and uses.
Lenntech: Neodymium: Physical data, chemical properties, health and environmental effects.
Neodymium: Data tables and historic information.
Visual Elements: Neodymium: Image, discovery, source, uses, and key isotopes.
WebElements: Neodymium: Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Neodymium: Properties of the element, including its history, applications, and characteristics.