Chemical of the Week Presented by chemistry professor B. Z. Shakhashiri for his introductory chemistry classes, this site leads to the interesting chemistry behind everyday phenomena. An interesting site containing examples and visual models of interesting molecules from many classes of compounds, such as minerals, poisons, drugs, macromolecules and more. Excellent and frequently updated website hosted by chemistry professor Fred Senese of Frostburg State University. List for consumer chemistry with hyperlinked references and illustrations. Every month a new molecule is described, complete with reliable background information.
Contributions come from academic and industrial sectors.
You may select an element from the periodic table, and learn about properties, history, uses and sources of the element. Very good linkages from compound of interest to physical properties and relevant information. These are some sites that yield structures or images for compounds within their databases. Library handbooks and encyclopedias can provide the same or more information. A major site maintained by Center for Scientific Computing in Finland.