New York Nuclear Corporation (NYNCO)
Offers brokerage services to the commercial nuclear power industry, including uranium, uranium hexafluoride conversion, and uranium enrichment services.
http://www.nynco.com/

Uranium: Properties: Element
Very extensive information about the chemical/physical properties of uranium. Information includes the occurrence of uranium, isotopes, and spectrum.
http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e09291.html

Radioactive Byproducts of Depleted Uranium (Uranium-238)
Shows the byproducs of depleted uranium and shows their half-lives.
http://www.ccnr.org/decay_U238.html

Uranium (Element)
Some quick facts about uranium, including all the basic info.
http://www.tamuk.edu/chemistry/WebElements/uranium_element.htm

The Element Uranium
Basic and advanced technical details and history concerning uranium.
http://dhost.info/aquatsr/uranium/

Sigma Laboratory Centrifuges
Sigma Laborzentrifugen - We provide a full range of laboratory centrifuges starting from high-speed microcentrifuges up to high-volume floor standing centrifuges. 
http://www.sigma-zentrifugen.de/

UIC - Uranium & Nuclear Power Information Centre
The UIC web site is to assist public understanding of uranium mining and nuclear electricity generation.
http://www.uic.com.au/

Uranium and Its Compounds
Facts about uranium and its compounds, including physical and chemical properties, uses, and possible health effects.
http://web.ead.anl.gov/uranium/guide/ucompound/

Uranium-235 Chain Reaction
Shows examples uranium reactions in fission, as well as data about those reactions.
http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/u235chn.html

It's Elemental - Isotopes of the Element Uranium
The Element Uranium - Known Isotopes
http://education.jlab.org/itselemental/iso092.html