Recruitment of participants did not commence due to lack of available staff to run the trial.

This study is a randomised controlled trial that aims to examine the efficacy of an established online bulletin board for depression. It has been estimated that millions of people worldwide use peer-to-peer bulletin boards, forums or internet support groups (ISGs) for health conditions. However, little is known about the effectiveness of these groups in terms of symptom reduction or improvement in quality of life. The current project investigates the effectiveness of an established online bulletin board for depression available to the public. To our knowledge, this is the first randomised controlled trial of the effectiveness of a pre-existing, well-established online bulletin board for depression in the community. The aims of the project are to determine whether the bulletin board improves mental health, quality of life, and related outcomes among members of the community with high levels of self-reported psychological distress and previous history or current experience of depression.

Inclusion Criteria:

1. Over 18 years of age
2. Internet access with email
3. Self-report of current or previous experience of depression

Exclusion Criteria:

1. Current participation in an online support group for depression
2. Diagnosis of bipolar disorder, schizophrenia, or psychosis