Family Education.com - This site offers information on child development, school-related issues, and parenting, and allows parents to connect with experts.
NNCC - Child Development - This is a part of the National Network for Child Care site from Iowa State University. It contains many excellent articles on child development in infants, toddlers, preschoolers and school-age children. It also covers intellectual, emotional/social and brain development by topic.
Parenthood.Com - A comprehensive parenting site with information on everything from health and safety to family travel and recipes.
Parenting - Information on everything from pregnancy to kid-friendly recipes, from the publishers of Parenting magazine.