GriefNet.org - An Internet community of persons dealing with grief, death, and major loss.
The AARP - Provides information on how to handle to death of a loved one. As well as dealing with personal grief, they cover many other topics such as legal issues.
GriefShare is a friendly, caring group of people who will walk alongside you through one of life’s most difficult experiences. You don’t have to go through the grieving process alone.
The Center for Loss is dedicated to "Companioning" grieving people as they mourn transitions and losses that transform their lives.