National Association for the Education of Young Children
http://naeyc.org

California Association for the Education of Young Children
http://caeyc.org

National Head Start Association
http://www.nhsa.org/

LACOE Head Start Program
http://www.lacoe.edu/lacoeweb/orgs/205/index.cfm

Preschool Science with PEEP and the Big Wide World
http://peepandthebigwideworld.com/

National Parent Information Network
http://npin.org/

National Child Care Information Center
http://nccic.org/

National Registry of Child Statistics
http://www.childstats.gov/

UNICEF: State of the World's Children 2001
http://www.unicef.org/sowc01/

California Early Childhood Mentor Program
http://www.ecementor.org/

World Organization for Early Childhood Education
http://www.omep-usnc.org/