Animated tour of the DDC: Take a slideshow tour of the Dewey Decimal System and then take a quiz.

Do We Really Know Dewey?: An introduction to the Dewey Decimal System created by a ThinkQuest team.

Do the Dewey: A basic guide to Dewey for grades 4-12+.

KidsClick-Dewey Index: Helps kids to locate sites by the DDC number. Grades 4-8

Dewey Browse: List of websites arranged by DDC number for grades 4-12. Created by Gail Grainger.