Seaborgium
Links
Visual Elements: Seaborgium
http://www.chemsoc.org/viselements/pages/seaborgium.html
Physical information, ionisation energies, and key isotopes.
It's Elemental: Seaborgium
http://education.jlab.org/itselemental/ele106.html
Basic physical and historical information.
EnvironmentalChemistry.com: Seaborgium
http://environmentalchemistry.com/yogi/periodic/Sg.html
Atomic structure and table of nuclides.
WebElements: Seaborgium
http://www.webelements.com/webelements/elements/text/Sg/key.html
Information on history, isolation, and properties.
Lenntech: Seaborgium
http://www.lenntech.com/Periodic-chart-elements/Sg-en.htm
Physical data and chemical properties.
Wikipedia: Seaborgium
http://en.wikipedia.org/wiki/Seaborgium
History and basic information on the element.