American Association of Suicidology (AAS) - Directory of Support Groups
AAS is a membership organization for all those involved in suicide prevention and intervention, or touched by suicide. AAS is a leader in the advancement of scientific and programmatic efforts in suicide prevention through research, education and training, the development of standards and resources, and survivor support services.
http://www.suicidology.org/suicide-support-group-directory (Specific link to support groups)
American Foundation for Suicide Prevention (AFSP) - Directory of Support Groups
Not-for-profit organization exclusively dedicated to understanding and preventing suicide through research, education and advocacy, and to reaching out to people with mental disorders and those impacted by suicide.
http://www.afsp.org/index.cfm?fuseaction=home.viewPage&page_id=FEE33687-BD31-F739-D66C210657168295
Friends and Families of Suicide
FFoS is an international group and community. They offer understanding, support, information, connections and hope to anyone whose life has been affected by the suicide of another person. FFOS is an all volunteer community, led by special members called moderators.
http://health.groups.yahoo.com/group/FFofSuicides/
Heartbeat: Grief Support Following Suicide
Peer support offering empathy, encouragement and direction following the suicide of a loved one.
http://heartbeatsurvivorsaftersuicide.org/index.shtml
Suicide Prevention Resource Center (SPRC)
Document listing links to support groups and other online resources.
http://www.sprc.org/sites/sprc.org/files/library/survresources.pdf
Survivors of Suicide Loss, Inc.
Survivors of Suicide Loss - San Diego County is part of an international network that has been established to foster new support groups and to provide information about grief-related services and referrals in North America.
http://www.sossd.org/index.htm