If you are thinking of suicide, read this first.
Call 1-800-273-TALK (8255) (in the USA) and your call will be routed to the closest possible crisis center in your area.
Call 1-800-SUICIDE (in the USA) and your call will be answered by the nearest crisis center.
Befrienders International information and directories of helplines worldwide.
List of suicide resources on the Net.
Suicide hotline at the Mental Health Sanctuary.
Further resources on the Net.