7 links
ChemicalElements.com: Bismuth
chemicalelements.com
Basic information, atomic structure, and table of isotopes.
EnvironmentalChemistry.com: Bismuth
environmentalchemistry.com
Atomic structure, chemical and physical properties, and table of nuclides.
Lenntech: Bismuth
lenntech.com
Physical data, chemical properties, health and environmental effects.
Radiochemistry of Bismuth
lib-www.lanl.gov
Full text of the monograph by Kashinath S. Bhatki (Tata Institute of Fundamental Research, Bombay India and Bhabha Atomic Research Centre, Trombay, Bombay, India). [PDF]
WebElements: Bismuth
ebelements.com
Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Bismuth
en.wikipedia.org
Properties of the element, including its history, applications, and characteristics.