A highly readable, informed overview of the sense of smell, with brief treatments of on olfactory receptors, odor recognition and memory for odors.

An overview of olfaction, including helpful diagrams and lots about the chemistry of olfaction.

Recent experiments verify that dogs are able to detect cancer cells by smell. See this also.

Answers to frequently asked questions about smell.

Website with lots of links to material on taste and smell.

Healthcare professionals can use odors to diagnose disease. This webpage describes the telltale characteristic odors of different diseases.

Are you a supertaster? Find out by trying the exercise described here.

What is umami, and how does it contribute to taste?