Foundation For Grandparenting
The Foundation For Grandparenting is a not-for-profit, 501 (C)3, tax-exempt corporation. Since 1980 they have been dedicated to raising grandparent consciousness to better the lives of grandchildren, parents and grandparents.
http://www.grandparenting.org/
GENERATIONS UNITED (GU)
The only national membership organization focused solely on promoting intergenerational strategies, programs, and public policies. GU represents more than 100 national, state, and local organizations representing more than 70 million Americans and is the only national organization advocating for the mutual well-being of children, youth, and older adults.
http://www.gu.org/