Happy Grandparents Day  
   A short history of this came to a national observance in the United States.
   http://www.geocities.com/Heartland/2328/grparday.htm

Grandparent's Day History  
   Explains the purpose of the day, provides a short history, and includes a list of ideas for observing it.
   http://www.geocities.com/Heartland/Forest/5675/gramhistory.html

Census Bureau Fact Sheet  
   Census facts For Grandparents Day.
   http://www.census.gov/Press-Release/fs97-09.html

Billy Bear says... Happy Grandparent's Day  
   Offers electronic postcards, craft projects, and other activities.
   http://www.billybear4kids.com/holidays/grandparents/day.html

Celebrating Grandparent's Day  
   Site features both online and printable activities, greeting cards, wallpaper, coloring cards, and additional resources to celebrate Grandparents Day.
   http://www.akidsheart.com/holidays/grand/grand.htm