Environmental Chemistry
Environmental chemistry.com: Periodic Table Selenium
Excellent resource for just about anything you could ever want to know about selenium.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Selenium
Nice detailed synopsis of selenium, its properties and uses.
National Institutes of Health
National Institutes of Health: Dietary Supplement Fact Sheet: Selenium
Information on the dietary and nutritional significance of selenium from an authoritative source.
Web Elements
Web Elements Periodic Table: Selenium
Excellent source of information on selenium, its properties, isolation and electron configuration. The site includes pictures of selenium.
Chemicool
Chemicool: Selenium
A set of tables summarizing the physical and chemical properties of the element selenium.
Amethyst Galleries
The Mineral Native Selenium
Nice information on selenium form a mineralogical point of view as well as a listing of selenium containing minerals.
TED Talks
Ted: Ted Ed: Selenium: Periodic Table of Videos
The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about selenium- element number 34 and you can find it below sulfur on the periodic table. [2:12]
Royal Society of Chemistry
Royal Society of Chemistry: Visual Elements: Selenium
Short entry describing selenium and a couple of its uses.
University of Kentucky
Chem Comics: Seleneium
Comics featuring selenium. Good graphics for a presentation.