ChemGlobe: Curium
- Electronic, thermal, and steric data along with an isotope table.
- http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/96.html

LANL: Curium
- Basic information and history.
- http://periodic.lanl.gov/elements/96.html

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

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

Visual Elements: Curium
- General and physical information, source, and key isotopes.
- http://www.chemsoc.org/viselements/pages/curium.html

ChemicalElements.com: Curium
- Basic information, atomic structure, and isotopes.
- http://www.chemicalelements.com/elements/cm.html

It's Elemental: Curium
- Basic physical and historical information.
- http://education.jlab.org/itselemental/ele096.html

Curium
- History and properties of the element, its isotopes, its spectrum, and its substances.
- http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e09600.html

Britannica Nobel Prize: Curium
- Overview and basic data.
- http://www.britannica.com/nobel/micro/154_38.html