Vanadium

ChemGlobe: Vanadium - Electronic, thermal, and steric data along with an isotope table.
partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/23.html

ChemicalElements.com: Vanadium - Basic information, atomic structure, and isotopes.
www.chemicalelements.com/elements/v.html

EnvironmentalChemistry.com: Vanadium - Atomic structure, chemical and physical properties, and table of nuclides.
environmentalchemistry.com/yogi/periodic/V.html

It's Elemental: Vanadium - Basic physical and historical information.
education.jlab.org/itselemental/ele023.html

LANL: Vanadium - History, sources, uses, and properties.
periodic.lanl.gov/elements/23.html

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

USGS Minerals Information: Vanadium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
minerals.usgs.gov/minerals/pubs/commodity/vanadium/

Visual Elements: Vanadium - General and physical information, source, uses, key isotopes, and ionisation energies.
www.chemsoc.org/viselements/pages/vanadium.html

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

Radiochemistry of Vanadium - Full text of the monograph by J. L. Brownlee Jr. (Dept. of Chemistry, University of Michigan, Ann Arbor, Michigan). [PDF] <small>(December, 1960)</small>
lib-www.lanl.gov/cgi-bin/getfile=3frc000005.pdf