The following links are helpful for anyone interested in Early Childhood Education:

Center for Disease Control (CDC)

http://www.cdc.gov/ncbddd/childdevelopment/index.html

California Department for Education
http://www.cde.ca.gov/sp/cd/

The Child Development Training Consortium
http://www.childdevelopment.org/cs/cdtc/print/htdocs/home.htm

Commission on Teacher Credentialing
http://www.ctc.ca.gov/credentials/creds/child-dev-permits.html

The National Association for the Education of Young Children (NAYCE)