(Note: employers and HR professionals may also find it useful to visit the Resources for Employers section.)

General Mental Health Information
American Psychological Association - Articles on many topics
National Institute of Mental Health - Fact sheets on many topics
Substance Abuse and Mental Health Services Administration
National Mental Health Association
National Association for Mental Illness
New England Index - Information on disabilities

Specific Concerns
Depression and Bipolar Support Alliance
Seasonal Affective Disorder Association
Anxiety Disorders Association of America
National Center for PTSD (Post-Traumatic Stress Disorder)
Social Phobia/Social Anxiety Association
Obsessive Compulsive Foundation
Learning Disorders Worldwide
National Center for Learning Disabilities
Attention Deficit Disorder Association
Children & Adults with ADHD
Compassionate Friends - grief support after the death of a child
Massachusetts Coalition Against Sexual Assault and Domestic Violence

Addictions
Alcohol Screening - find out if you have a drinking problem
National Institute of Drug Abuse
Alcoholics Anonymous
Narcotics Anonymous
Al-Anon
Gamblers Anonymous
Gam-Anon
Overeaters Anonymous
QuitNet - smoking cessation

Find a Therapist
MentalHelpNet
Find a Therapist Now
PsychologyInfo
Clinician Directory
Therapist-Psychologist
Psychology Directory
Psychology Today
Get Mental Help
Locate a Doc
PsychSites
Just Psychotherapists
HealthLinks
Psychologists USA
Therapist Unlimited
Holistic Network