ChemicalElements.com: Bromine
Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Bromine
Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Bromine
Basic physical and historical information.
Lenntech: Bromine
Physical data, chemical properties, health and environmental effects.
USGS Minerals Information: Bromine
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Visual Elements: Bromine
Source, uses, general and physical information, and key isotopes.
WebElements: Bromine
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Wikipedia: Bromine
Properties of the element, including its history, applications, and characteristics.