It's Elemental: Boron - Basic physical and historical information. ChemicalElements.com: Boron - Basic information, atomic structure, and table of isotopes. USGS Minerals Information: Boron - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). EnvironmentalChemistry.com: Boron - Atomic structure, chemical and physical properties, and table of nuclides. Boron - Comprehensive historical data about the element and its compounds. BoronWeb - Boron chemistry and links to boron chemists around the world. Wikipedia: Boron - Properties of the element, including its history, applications, and characteristics. WebElements: Boron - Extensive information on history, uses, occurrence, compounds, and properties of the element.