Rhenium
Links
Radiochemistry of Rhenium
http://lib-www.lanl.gov/cgi-bin/getfile?rc000051.pdf
Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF]
ChemicalElements.com: Rhenium
http://www.chemicalelements.com/elements/re.html
Basic information, atomic structure, and isotopes.
USGS Minerals Information: Rhenium
http://minerals.usgs.gov/minerals/pubs/commodity/rhenium/
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Visual Elements: Rhenium
http://www.chemsoc.org/viselements/pages/rhenium.html
General and physical information, source, uses, key isotopes, and ionisation energies.
It's Elemental: Rhenium
http://education.jlab.org/itselemental/ele075.html
Basic physical and historical information.
EnvironmentalChemistry.com: Rhenium
http://environmentalchemistry.com/yogi/periodic/Re.html
Atomic structure, chemical and physical properties, and table of nuclides.
WebElements: Rhenium
http://www.webelements.com/webelements/elements/text/Re/key.html
Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Rhenium
http://www.wikipedia.org/wiki/Rhenium
Properties of the element, including its history, applications, and charateristics.
Lenntech: Rhenium
http://www.lenntech.com/Periodic-chart-elements/Re-en.htm
Physical data, chemical properties, and health effects.