• How to read nutrition labels, PDF from the Food and Drug Administration
• Nutrition basics for healthy girls, from the U.S. Department of Health and Human Services
• Nutrition, Physical Activity and Obesity Prevention, campaigns and toolkits from Oregon Health Authority
• MyPlate, from the U.S. Department of Agriculture
• Eat Right, from the Academy of Nutrition and Dietetics
• Find a farmers market, from the Oregon Farmers Markets Association

Books

• How to Get Your Kid to Eat ... But Not Too Much, by Ellyn Satter. 
• The Stoplight Diet for Children: An Eight-Week Program for Parents and Children, by Leonard Epstein and Sally Squires.
  • This book is out of print, but should be available in your public library.
• Red Yellow Green: System for Weight Management, by Karen Balko, RD.
• Fast Food Nation, by Eric Schlosser.
• Chew on This: Everything You Don't Want To Know About Fast Food, by Eric Schlosser.
• Origins, How the Nine Months Before Birth Shape the Rest of Our Lives, by Annie Murphy Paul.