AARP: For widowed and bereaved adults.

Beyond Indigo: Changing the way you feel about grief and loss.

GriefNet.org: GriefNet.org is an Internet community of persons dealing with grief, death, and major loss.

GriefShare: Provides newsletters and a list of support groups in your area.

Motherless Daughters Online: A resource for daughters who have lost their mothers.
Suggested books:
"Motherless Daughters: A Legacy of Loss" (1994)
""Letters from Motherless Daughters" (1995)
"Mother of My Mother" (1999)
"Motherless Mothers" (2005)

Parents of Murdered Children: Provides support and assistance to all survivors of homicide victims while working to create a world free of murder.

The Compassionate Friends: The mission of The Compassionate Friends is to  assist families toward the positive resolution of grief following the death of a child of any age and to provide information to help others be supportive.