National Wildlife Federation  http://www.nwf.org

World Wildlife Fund    http://www.worldwildlife.org/home-full.html

Nature Conservancy    http://www.nature.org

Audubon Society    http://www.audubon.org

The Wild Center    http://www.wildcenter.org

Society of Children’s Book Writers and Illustrators     http://www.scbwi.org/default.aspx

Poets & Writers    http://www.pw.org