ChemGlobe: Neon - Electronic, thermal, and steric data along with basic facts and an isotope table. - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/10.html
LANL: Neon - History, compounds, properties, and uses. - http://periodic.lanl.gov/elements/10.html
Wikipedia: Neon - Properties of the element, including its history, applications, and characteristics. - http://en.wikipedia.org/wiki/Neon
Lenntech: Neon - Physical data, chemical properties, health and environmental effects. - http://www.lenntech.com/Periodic-chart-elements/Ne-en.htm
EnvironmentalChemistry.com: Neon - Atomic structure, chemical and physical properties, and table of nuclides. - http://environmentalchemistry.com/yogi/periodic/Ne.html
Visual Elements: Neon - General and physical information, source, uses, key isotopes, and ionisation energies. - http://www.chemsoc.org/viselements/pages/neon.html
Especiál Gas Inc.: Neon - Numeric data, uses, and general information. - http://www.c-f-c.com/specgas_products/neon.htm
ChemicalElements.com: Neon - Basic information, atomic structure, and table of isotopes. - http://www.chemicalelements.com/elements/ne.html