Aluminum

Aluminium versus Aluminum
The different American spelling of what British English spells 'aluminium' sometimes cause puzzlement as to how it could have come about. This article tells that story.
http://www.quinion.com/words/articles/aluminium.htm

Aluminum - Linked to Many Diseases in Humans
Provides many references on Aluminum's effect on humans and the environment.
http://www.hbci.com/~wenonah/hydro/al.htm

ChemGlobe: Aluminium
Electronic, thermal, and steric data along with basic information.
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/13.html

ChemicalElements.com: Aluminum
Basic information, atomic structure, and table of isotopes.
http://www.chemicalelements.com/elements/al.html

It's Elemental: Aluminum
Basic physical and historical information.
http://education.jlab.org/itselemental/ele013.html

LANL: Aluminum
History, sources, uses, and compounds.
http://periodic.lanl.gov/elements/13.html

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

USGS Minerals Information: Aluminum
Overview and a number of publications in PDF format.
http://minerals.usgs.gov/minerals/pubs/commodity/aluminum/

Visual Elements: Aluminium
Image, animation, source, uses, key isotopes, and covalent bonds.
http://www.chemsoc.org/viselements/pages/aluminium.html

WebElements: Aluminum
Extensive information on history, uses, occurrence, compounds, and properties of the element.
http://www.webelements.com/webelements/elements/text/Al/key.html

Wikipedia: Aluminum
Details the properties of the element, including its history, applications, and characteristics.
http://en.wikipedia.org/wiki/Aluminum