| zerotothree.org | Zero To Three's Web Site |
| nsaca.org | National School Age Care Alliance |
| nncc.org | National Network for Child Care |
| nhsa.org | National Head Start Association |
| nccic.org | National Child Care Information Center (U.S.) |
| nccanet.org | National Child Care Association (NCAA) |
| naeyc.org | The National Association for the Education of Young Children |
| naccrra.org | Naccrra | The Nation's Network Of Child Care Resource And Referral |
| naccrra.net | National Association of Child Care Resource and Referral Agencies |
| naccp.org | National Association of Child Care Professionals |
United States , California , San Diego