Beyond Blue (http://www.beyondblue.org.au/)
Extensive support and resources for anyone dealing with depression and anxiety.
Lifeline (http://www.lifeline.org.au/Get-Help/Facts—Information/Depression/Depression)
Counseling and support for depression and other crises.
Beyond Blue Youth (http://www.youthbeyondblue.com/get-help/for-depression/)
As with Beyond Blue above, this is a good resource for younger people.
SANE (http://www.sane.org/information/factsheets-podcasts/178-depression)
Helpline and information for suffers of depression.
Mens Line (http://www.mensline.org.au/Depression.html)
24/7 support service for men.