LiteraryTraveler.com: L Frank Baum
- Detailed biography.
- http://www.literarytraveler.com/literary_articles/l_frank_baum.aspx

Maruko's Oz Website - from Japan -
- For fans of "The Wizard of Oz". Written by a Japanese Oz fan.
- http://homepage1.nifty.com/nannan/e/eindex.html

The Wizard of Oz: An American Fairytale
- To celebrate the 100th anniversary of this American literary classic, the Library of Congress presents its exhibition; with costumes and memorabilia borrowed from museums, other libraries, and private collectors.
- http://www.loc.gov/exhibits/oz/

The Wonder Behind the Wizard of Oz
- Lesson plan that explores the influences and details of Baum's life, and compares and contrasts the book to the movie.
- http://www.yale.edu/ynhti/curriculum/units/1995/2/95.02.02.x.html#top

Oz Encyclopedia
- Large reference site provides a tour of the fantasy land of Oz and its inhabitants. Contains a movie catalog and text of all the Oz books.
- http://www.halcyon.com/piglet/

Oz Web Ring
- Directory of member sites and instructions for joining.
- http://r.webring.com/hub?ring=ozsites&list

Wonderful Wizard of Oz
- News, events, FAQs, reviews, ideas of themed party planning, and information pertaining to the Oz series. Also has a teacher lesson play.
- http://www.eskimo.com/~tiktok/

Holding the Wizard Accountable
- Looks at Baum's calls for genocide of the Lakota people at the time of the Wounded Knee massacre and contrasts them with the tolerance for diversity in the Oz books.
- http://www.dickshovel.com/roeschbaum.html

International Wizard of Oz Club
- Founded in 1957 to bring together all those interested in L. Frank Baum and Oz. Membership, events, and convention details, as well as information on the author.
- http://www.ozclub.org/