Germanium

LANL: Germanium - History, sources, uses, and properties.
http://periodic.lanl.gov/elements/32.html

Radiochemistry of Germanium - Full text of the monograph by Jacob A. Marinsky (University of Buffalo, Dept. of Chemistry, Buffalo, New York). [PDF] <small>(July, 1961)</small>
http://library.lanl.gov/cgi-bin/getfile?rc000036.pdf

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

ChemGlobe: Germanium - Electronic, thermal, and steric data along with an isotope table.
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/32.html

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

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

It's Elemental: Germanium - Basic physical and historical information.
http://education.jlab.org/itselemental/ele032.html

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

Discovery of Germanium - Article by Clemens Winkler.
http://dbhs.wvusd.k12.ca.us/webdocs/Chem-History/Disc-of-Germanium.html

USGS Minerals Information: Germanium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
http://minerals.usgs.gov/minerals/pubs/commodity/germanium/