American Psychiatric Association
http://www.psych.org/

American Psychoanalytic Association
http://www.apsa.org/

European Psychiatric Association
http://www.europsy.net/

Department of Psychiatry of Birmingham
http://www.neuroscience.bham.ac.uk/psychiatry/

Fédération Française de Psychiatrie (FFP)
http://psydoc-fr.broca.inserm.fr/

International Association for Women’s Health (IAWMH)
http://www.iawmh.org/

International Society for Psychosomatic Obstetrics and Gynaecology (ISPOG)
http://www.ispog.org/

Royal College of General Practitioners Perinatal Mental Health Toolkit
http://www.rcgp.org.uk/clinical-and-research/toolkits/perinatal-mental-health-toolkit.aspx

Royal College of Psychiatrists (RCPsych) Perinatal Section
http://www.rcpsych.ac.uk/college/sections/perinatal.aspx

The International Society for Affective Disorders (ISAD)
https://www.isad.org.uk/default.asp

The Society for Research in Psychopathology (SRP)
http://www.psychopathology.org/

World Association on Infant Mental Health (WAIMH)
http://www.waimh.org/

World Psychiatric Association (expecting a perinatal section..)
http://www.wpanet.org/index.php

Mothers for Mothers
http://www.mothersformothers.co.uk/