Resources for Learning More About Fasting & Spiritual Disciplines
There are numerous readings out there on fasting and the disciplines, one of the best is Richard Foster's celebration of Discipline. Another great resource can be found on Redeemer Church in New York's website from one of the early church fathers, John Crysostom, called Fasting Basics. They have another simple document on there you can access here.
Scot Mcknight has a wonderful book on Fasting. The whole ancient practices series is worth your time.
And if you are interested in podcast, here is a great one from a pastor in Missouri named Brian Zahnd. Practice Resurrection: Fasting.