http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=681

Chemistry and pharmacology of dopamine.

http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=439260

Chemistry and pharmacology of norepinephrine.

http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5816

Chemistry and pharmacology of epinephrine.

http://nba.uth.tmc.edu/neuroscience/s1/chapter12.html

Monoamine Neurotransmitters: open-access ebook chapter with animations and self-quiz.

http://www.news-medical.net/health/Dopamine-Functions.aspx

Recent news on dopamine.

http://www.dnalc.org/view/812-The-Dopamine-System.html

Video describing the dopaminergic system.

http://www.dnalc.org/view/2397-Dopamine-Transporter-Networks-.html

Video discussing the dopamine transporter.

http://www.dnalc.org/view/1147-The-Noradrenaline-Norepinephrine-System.html

Video describing the noradrenergic system.

http://www.dnalc.org/view/1199-ADHD-Noradrenaline-and-Dopamine.html

Video discussing the role of catecholamines in attention deficit hyperactivity disorder (ADHD).

http://www.dnalc.org/view/2166-Ritalin-Adderall-Strattera-ADHD-medications.html

Video discussing ADHD medications.