Depleted Uranium - Information about depleted uranium in question and answer form. - http://www.gulflink.osd.mil/faq/faq_du.jsp
The Element Uranium - Basic and advanced technical details and history concerning uranium. - http://dhost.info/aquatsr/uranium/
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/
WHO: Depleted Uranium - Information about depleted uranium and its potential health effects. - http://www.who.int/mediacentre/factsheets/fs257/en/
ChemGlobe: Uranium - Electronic, thermal, and steric data along with an isotope table. - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/92.html
LANL: Uranium - Sources, properties, isotopes, and uses. - http://periodic.lanl.gov/elements/92.html
Wikipedia: Uranium - Properties of the element, including its history, applications, and characteristics. - http://en.wikipedia.org/wiki/Uranium
Lenntech: Uranium - Physical data, chemical properties, health and environmental effects. - http://www.lenntech.com/Periodic-chart-elements/U-en.htm
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
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
It's Elemental - Isotopes of the Element Uranium - Has an extensive list about the isotopes of uranium. Gives mass number, half life, branching percentage, and decay mode of the isotopes. - http://education.jlab.org/itselemental/iso092.html
Uranium (Element) - Some quick facts about uranium, including all the basic info. - http://www.tamuk.edu/chemistry/WebElements/uranium_element.htm
EnvironmentalChemistry.com: Uranium - Atomic structure, chemical and physical properties, and table of nuclides. - http://environmentalchemistry.com/yogi/periodic/U.html