See also:

• Science: Chemistry: Elements: Nonmetals  (3)

• ChemGlobe: Sulfur - Electronic, thermal, and steric data along with basic information.
• ChemicalElements.com: Sulfur - Basic information, atomic structure, and table of isotopes.
• EnvironmentalChemistry.com: Sulfur - Atomic structure, chemical and physical properties, and table of nuclides.
• It's Elemental: Sulfur - Basic physical and historical information.
• LANL: Sulfur - History, properties, production, and uses.
• Lenntech: Sulfur - Physical data, chemical properties, health and environmental effects.
• Sulphur versus Sulfur - Some thoughts on the history of the spelling of the name of element 16: 'sulfur' vs 'sulphur'.
• USGS Minerals Information: Sulfur - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
• Visual Elements: Sulfur - Image, general and physical information, source, uses, key isotopes, and ionisation energies.
• WebElements: Sulfur - Extensive information on history, uses, occurrence, compounds, and properties of the element.
• Wikipedia: Sulfur - Properties of the element, including its history, applications, and characteristics.

• Radiochemistry of Sulfur - Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (February, 1962)