TED Talks
Ted: Ted Ed: How Do We Smell?
An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? This...
University of Washington
Our Chemical Senses: Olfaction Experiments
This website provides information on our chemical senses. "Students learn how to investigate the olfactory system and then find out how to plan and carry out their own experiments."
McGraw Hill
The Mc Graw Hill Companies, Inc.: Sense of Smell
This informative site provides information on the olfactory receptors, olfactory epithelium, and olfactory bulb. Detailed drawing supplement the text along with an animation that depicts the movement of molecules through the nose.