ChemGlobe: Boron
- Electronic, thermal, and steric data, along with general information.
- http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/5.html

LANL: Boron
- History, sources, uses, and properties.
- http://periodic.lanl.gov/elements/5.html

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

BoronWeb
- Boron chemistry and links to boron chemists around the world.
- http://www.chem.leeds.ac.uk/boronweb/

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

Boron
- Comprehensive historical data about the element and its compounds.
- http://www.du.edu/~jcalvert/phys/boron.htm

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

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

ChemicalElements.com: Boron
- Basic information, atomic structure, and table of isotopes.
- http://www.chemicalelements.com/elements/b.html

It's Elemental: Boron
- Basic physical and historical information.
- http://education.jlab.org/itselemental/ele005.html

Visual Elements: Boron
- Image, animation, source, uses, physical information, and covalent bonds.
- http://www.chemsoc.org/viselements/pages/boron.html