"Differentiating AD/HD from Bipolar Disorder In Children"
http://www.childspirit.com/BDADD2001.PDF
It looks so useful and I wanted to update my website. But the server is down right now...
If you don't read PDF, find it on Google and click [View as HTML]

neurotransmitter.net
http://www.neurotransmitter.net/index.html
Another great link. It was massive amount of information on bipolar and schizophrenia. Mechanism of action and etiologies
.