There are a few wonderful articles that might be of interest to you.
The first is geared specifically toward widows and widowers. Here is the link: Widows and Widowers: Moving Forward With Faith
Another great article is geared for those who are helping someone in need of comfort: The Courage to Comfort
The third fantastic message comes from Elder Jeffrey R. Holland of the Quorum of The Twelve Apostles: The Best Is Yet To Be