Berkelium
Links
Britannica Nobel Prizes: Berkelium
http://www.britannica.com/nobel/micro/64_86.html
Overview and basic data.
The Columbia Encyclopedia: Berkelium
http://www.bartleby.com/65/be/berkeliu.html
Overview for the general reader.
It's Elemental: Berkelium
http://education.jlab.org/itselemental/ele097.html
Basic physical and historical information.
ChemicalElements.com: Berkelium
http://www.chemicalelements.com/elements/bk.html
Basic information, atomic structure, and isotopes.
Berkelium
http://www.scescape.net/~woods/elements/berkelium.html
Data tables and historic information.
Visual Elements: Berkelium
http://www.chemsoc.org/viselements/pages/berkelium.html
General and physical information, and key isotopes.
EnvironmentalChemistry.com: Berkelium
http://environmentalchemistry.com/yogi/periodic/Bk.html
Atomic structure, chemical and physical properties, and table of nuclides.
WebElements: Berkelium
http://www.webelements.com/webelements/elements/text/Bk/key.html
Extensive information on history, compounds, and properties.
Lenntech: Berkelium
http://www.lenntech.com/Periodic-chart-elements/Bk-en.htm
Physical data, chemical properties, and health effects.