Grief is a deeply personal emotion, there are many resources available. Below is a list of articles and websites I have found helpful. Please feel free to add resources that have helped you:
Dealing with a family member who is terminally ill
What to Expect When Your Parent is Dying ~The Globe and Mail
Dealing with a Parent’s Terminal Illness ~Cancer.org
Talking to a Dying Parent ~Caring.org
Coping with Anticipatory Grief ~LungCancer.about.com
Coping with Loss
The 5 stages of grief ~Grief.com
Loss of a Parent ~Cancercare.org
To help children with grieving ~National Alliance for Grieving Children
8 Tips for Coping with the Death of a Parent ~Huffington Post
Helping Your Child Deal With Death
Overcoming the Loss of a Child Without Drugs or Alcohol: A Parent’s Guide
Advice for surviving the death of a spouse or partner at a young age
How to Help an Elderly Parent Deal With the Death of a Spouse
How to Avoid Family Conflicts after the Death of a Parent
Coping With the Death of Your Pet