You might find these links of fasting helpful.

7 Basic Steps to Fasting & Prayer

http://www.ccci.org/7steps/begin.html

Fasting Digest (Lots of info on fasting)

Penitential Fasting is Therapy for the Soul - Pope John Paul II

Samuel Miller - The Duty, the Benefits, and the Proper Methods of Religious Fasting A whole book online on fasting

St. John Chrysostom On Fasting, From Concerning the Statues, Excerpts from Homily III http://www.cin.org/chrystat.html

LENTEN PASTORAL "A Season of Prayer, Fasting and Almsgiving" The Rt Rev. Crispian Hollis

Here’s interesting article on the value of fasting from medical perspective http://www.medical- library.net/sites/framer.html?/sites/_history_of_fasting.html