ChemGlobe: Bohrium - Electronic data along with an isotope table and basic facts. - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/107.html
LANL: Bohrium - Basic information and history. - http://periodic.lanl.gov/elements/107.html
Apsidium: Bohrium - Basic information and atomic structure. - http://www.apsidium.com/elements/107.htm
Lenntech: Bohrium - Basic chemical properties. - http://www.lenntech.com/Periodic-chart-elements/Bh-en.htm
EnvironmentalChemistry.com: Bohrium - Atomic structure, chemical and physical properties, and isotopes. - http://environmentalchemistry.com/yogi/periodic/Bh.html
Berkeley National Laboratory: Bohrium - An article about an effort to determine the volatility of this element. - http://www.lbl.gov/Science-Articles/Archive/element-107-chem.html
Visual Elements: Bohrium - Image, source, general and physical information, and ionisation energies. - http://www.chemsoc.org/viselements/pages/bohrium.html