Zen and Recovery 
Description of the benefits of Zen meditation, and instruction in meditation for the beginner. Focuses on the benefits of Zen meditation in recovery from addictions, but is useful to any meditation beginner.
http://www.viacorp.com/addiction.html/The Alexander Technique for Buddhist Practitioners 
Explanation of the Alexander Technique as used for Zazen practice.
http://www.alexandertechnique.com/articles/zen
Sesshin For Newcomers 
Some words about sesshin for newcomers to Zen, by Aitkin Roshi.
http://www.zenproject.faithweb.com/zen_teachings/sesshin_newcomers.html
From a Zazen Journal 
A two-year daily meditative record of morning meditations, and attendance at extended sesshins, by an American Soto Zen practitioner.
http://www.bricoworks.com/zazen/zazen.html
How to Meditate (Zazen) 
Detailed instructions from Zen Mountain Monastery on how to practice Zen meditation.
http://www.mro.org/zmm/meditation/index.html