The Alberta Alcohol and Drug Abuse Commission (AADAC) provides information on the effects of alcohol use.  AADAC also offers an excellent primer on the addictive effects of a variety of street drugs. The Canadian Psychological Association presents a fact sheet on alcoholism.  If you’re interested in comparing your alcohol consumption to other Canadians, check out this self-evaluation tool by the Centre for Addiction and Mental Health.

The Canadian Psychological Association’s gambling fact sheet covers the basics on problem gambling.   ProblemGambling.ca provides lots of useful resources including self help tools.

Controlling Anger --  Before It Controls You by the American Psychological Association (APA)

A description of Anxiety Disorder  from the Canadian Mental Health Association
What is Social Anxiety?  from Anxiety BC
Self-Test  for Generalzied Anxiety from the Anxiety Disorders Association of America
Self-Test for Social Anxiety  from the Anxiety Disorders Association of America
Treatment Options from the Anxiety Disorders Association of Canada

This article from the Canadian Mental Health Association will answer many of your questions about Attention Deficit Disorders.  See also the fact sheet from the Canadian Psychological Assocaition and the FAQ and self-test from the National (US) Health Institute of Mental Health.

Understanding Autism and Approaches to Treatment (Autism Society of Canada)

Overview of Bipolar Disorder (Canadian Mental Health Association) 
Fact Sheet (Canadian Psychological Association)

What is chronic pain? This Canadian Psychological Association fact sheet provides a brief overview of what chronic pain is and how it is treated.  For a good treatment overview of the various considerations and approaches to pain relief, please check out the webmd site.

The National (US) Institute of Mental Health provides a comprehensive overview of the causes, symptoms and treatment of depression. For a brief description view the fact sheet on depression at the Canadian Psychological Association’s web site. The Mayo Clinic has a brief self-assessment tool that may help you decide if you need to speak to someone about your mood. The Feeling Good Handbook by Dr. David Burns is a popular self-help book. The Calgary Public Library has several copies of this book as well as others by this author.

Overview of Eating Disorders (Canadian Mental Health Association)
Fact Sheet (Canadian Psychological Association)

Overview of Obsessive Compulsive Disorder (Canadian Mental Health Association)
Self-Test (Anxiety Disorders Association of America)

Neuropsychology studies the relationship between brain and behaviour. Neuropsychologists usually work with people who have known or suspected problems with the functioning of the brain, whether from a traumatic brain injury, stroke, developmental brain abnormality, dementia, or a wide range of other disorders. A neuropsychological evaluation includes testing of memory, language abilities, attention, problem solving, spatial relations, and other functions of the brain. A formal assessment of personality and emotional factors may also be included to give a broad picture of a person's functioning. Some neuropsychologists also work in rehabilitation, helping people to improve their functioning after suffering brain damage - contributed by Dr. Gregor Jason.

For good general information on post traumatic stress disorder you can visit either the Canadian Mental Health Association or Canadian Psychological Association web sites.
If you are interested in better understanding the symptoms of PTSD a self-test is available at the Anxiety Disorders Association of America.
For a more detailed description of treatment options please visit the National Center for PTSD.