Organizations:
American Library Association (ALA)
Association for Library Service to Children (ALSC)
Young Adult Library Services Association (YALSA)

National Council of Teachers of English.
Assembly on Literature for Adolescents (ALAN)

Bibliographies and Web Maps:
Children's Literature Web Guide at the University of Calgary
Children's Books Central
Kids on the Web: Children's Books

Collections Elsewhere:
Arkley Collection of Children's Literature at the University of British Columbia Library

Baldwin Library of American and British Historical Children's Literature at the University of Florida

Canadian Children's Literature

Center for the Study of Books in Spanish for Children and Adolescents at the California State University San Marcos

Children's Historical Literature Disseminated throughout Europe (CHILDE) Project

Children's Literature Collection at the Lilly Library, Indiana University

Cotsen Children's Library at Princeton University

de Grummond Children's Literature Collection at the University of Southern Mississippi

Elizabeth Nesbitt Room at the University of Pittsburgh

Children's Literature Research Collections at the University of Minnesota

Illustrated Classics at the E-Texts Center at the University of Virginia

International Children's Digital Library

Lu Rees Archives of Australian Children's Literature at the University of Canberra, Canberra, Australia

The Osborne Collection of Early Children's Books at the Toronto Public Library

Sunday School Books at the Library of Congress' American Memory

Svenska Barnboksinstitutet (Swedish Institute for Children's Books)

UK Children's Books

Library of Congress. Lewis Carroll Scrapbook.

Commercial Sites:
Scholastic

Discussion Groups:
Child Lit (United States)

Education Resources:
Brief History of Early Movable Books

Multi-Media Projects:
Recess (University of Florida) on National Public Radio