There are many links to grief and bereavement resources on the net.  A lot of them offer a self-help approach.  Some have books or e-books or courses to work through.  Others have support forums.  Others have meetings in the community.

Here are some places to start.

General Grief Resources

Grief Journal

Grief Healing

Grief Quotes

GriefNet

For Those Who Have Lost a Child (of any age)

The Compassionate Friends

For Those Who Have Lost a Loved One to Suicide

Survivors of Suicide