1. Dual Diagnosis: Substance Abuse And Mental Illness - By Agnes B. Hatfield, Ph.D. An excellent article on the thorny problems surrounding treatment of the chemically-dependent mentally ill person.
  2. Dual Diagnosis Website -- Kathleen Sciacca has put together a superb site on the topic of dual diagnosis. The site is extensive, somewhat technical here and there, but contains many articles, current research, and even a 24 hour chat room. Highly Recommended!