Azom.com: Neodymium
   History, properties and applications of the element.
   http://www.azom.com/details.asp?ArticleID=1595

ChemGlobe: Neodymium
   Electronic, thermal, and steric data along with an isotope table.
   http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/60.html

ChemicalElements.com: Neodymium
   Basic information, atomic structure, and isotopes.
   http://www.chemicalelements.com/elements/nd.html

CorrosionSource.com: Neodymium
   History, properties, uses, and physical information.
   http://www.corrosionsource.com/handbook/periodic/60.htm

EnvironmentalChemistry.com: Neodymium
   Atomic structure, chemical and physical properties, and table of nuclides.
   http://environmentalchemistry.com/yogi/periodic/Nd.html

It's Elemental: Neodymium
   Basic physical and historical information.
   http://education.jlab.org/itselemental/ele060.html

LANL: Neodymium
   History, production, properties, and uses.
   http://periodic.lanl.gov/elements/60.html

Lenntech: Neodymium
   Physical data, chemical properties, health and environmental effects.
   http://www.lenntech.com/Periodic-chart-elements/Nd-en.htm

Visual Elements: Neodymium
   Image, discovery, source, uses, and key isotopes.
   http://www.chemsoc.org/viselements/pages/neodymium.html

Wikipedia: Neodymium
   Properties of the element, including its history, applications, and characteristics.
   http://en.wikipedia.org/wiki/Neodymium