This guest post is by Karen L. Rancourt, PhD. She writes an advice column for parents and grandparents at Mommybites.com and is the author of It's All About Relationships!: New Ways to Make Them Healthy and Fulfilling, at Home and at Work. Co-grandparenting refers to the relationships between people who have grandchildren in common. Due to divorces, remarriages, and the … [Read more...]