University of Washington
Neurotransmitters and Neuroactive Peptides
Very good introduction to the role that these chemicals play in the nervous system.
University of Texas at Austin
University of Texas: Neurons and Neurotransmitters
A good description of how the neurotransmitters are involved in cell communication. Very good site.
University of Texas at Austin
University of Texas: Neurotransmitter Role Play Description
A description of cellular communication involving neurotransmitters.
University of Texas at Austin
University of Texas: Other Neurotransmitters Compared to Dopamine
Site provides the main function of the neurotransmitters serotonin, norepinephrine, acetylcholine, and glutamate.