NLC Dewey Decimal Classification policy
- For Canadian libraries that use the Dewey Decimal system, the National Library of Canada tells how the NLC makes it easier to find Canadian authors and Canadian history, and how they make books for kids 15 and under stand out.
- http://www.collectionscanada.ca/6/17/s17-208-e.html

A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library
- By Melvil Dewey, 1876. In plain text (two versions), HTML, or as a zip file, from Project Gutenberg.
- http://www.gutenberg.net/etext/12513

Dewey Browse
- Contains websites using the Dewey Decimal Classification System. It is meant to be used for K-12 research and for personal interests.
- http://www.deweybrowse.org/

Dewey Decimal System of Classification
- An outline of the Dewey Decimal System, broken down into its ten major divisions, and one thousand subdivisions.
- http://www.july15.com/julia/ddecimal.htm

Do the Dewey!
- A Javascript trivia game testing one's knowledge of the Dewey Decimal Classification scheme.
- http://www.thrall.org/dewey/

About Dewey
- Provides overview of the invention of the first ontology notation system and the biography of the inventor.
- http://www.oclc.org/dewey/resources/biography/

Dewey Decimal System Home Page
- Official homepage for DDC. Includes: news, DDC updates, listing of libraries using DDC and internet resources classified by DDC, products and research. DDC summaries available to third level. Download Dewey screensaver.
- http://www.oclc.org/dewey/