Random Koans
- Read a koan picked at random from the text.
- http://www.ibiblio.org/zen/cgi-bin/koan.pl

Working with Koans
- Teisho by John Tarrant Roshi.
- ftp://coombs.anu.edu.au/coombspapers/otherarchives/electronic-buddhist-archives/buddhism-zen/teachings/tarrant-john/tarrant-teisho-93-02-06.txt

Hekigan Roku: Case 89: "The Path of the Boddhisattva"
- Commentary by Subhana Barzaghi.
- ftp://coombs.anu.edu.au/coombspapers/otherarchives/electronic-buddhist-archives/buddhism-zen/teachings/barzaghi-subhana/subhana-teisho-95-winter.txt

Zen Buddhism Koan Study Pages
- Extensive bibliography on commentaries from the Zen Buddhism WWW Virtual Library.
- http://www.ciolek.com/WWWVLPages/ZenPages/KoanStudy.html

Koan Commentaries by Barry Magid
- Barry Magid teaches at the Ordinary Mind Zendo as an affiliate of the San Diego Zen Center.
- http://www.ordinarymind.com/koans_frameset.html

Stop the Distant Rowboat Using Just Your Mind
- An explanation of a Zen koan, from a metaphor used by Dogen.
- http://www.cs.virginia.edu/~alb/zen/rowboat.html

Koan Practice
- An explanation of Koan practice by Genjo Marinello.
- http://www.zenproject.faithweb.com/zen_teachings/koan_practice.html

The Sound of One Hand Clapping
- A brief explanation of this famous koan, by Hakuin.
- http://www.io.com/~snewton/zen/onehand.html

Zen Koans: Transcending Duality
- A list of well-known koans.
- http://chinapage.com/zen/koan1.html