Carbon and Life
- The properties of the many forms of carbon and their importance in life, fuels and emissions.
- http://oolong.co.uk/carbon.htm

ChemGlobe: Carbon
- Electronic, thermal, and steric data along with basic information.
- http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/6.html

LANL: Carbon
- History, forms, compounds, and isotopes.
- http://periodic.lanl.gov/elements/6.html

Wikipedia: Carbon
- Properties of the element, including its history, applications, and characteristics.
- http://en.wikipedia.org/wiki/Carbon

Lenntech: Carbon
- Physical data, chemical properties, and health effects.
- http://www.lenntech.com/Periodic-chart-elements/C-en.htm

EnvironmentalChemistry.com: Carbon
- Atomic structure, chemical and physical properties, and table of nuclides.
- http://environmentalchemistry.com/yogi/periodic/C.html

ChemicalElements.com: Carbon
- Basic information, atomic structure, and table of isotopes.
- http://www.chemicalelements.com/elements/c.html

It's Elemental: Carbon
- Basic physical and historical information.
- http://education.jlab.org/itselemental/ele006.html

The Chemistry of Carbon
- Diagrams and VRML models of the element.
- http://www.nyu.edu/pages/mathmol/modules/carbon/carbon1.html

Visual Elements: Carbon
- Image, animation, source, general information, and key isotopes.
- http://www.chemsoc.org/viselements/pages/carbon.html