Articles about Discipleship
Dallas Willard: Why Bother with discipleship:
Dallas Willard: Discipleship
Dallas Willard: How does the disciple live
E-Books
Fathers of the Third and Fourth Century fathers-of-third-and-fourth-century.pdf
Rule of Saint Benedict rule-of-st-benedict.pdf
A Serious Call To A Devout And Holy Life, by William Law law_serious_call.pdf
The Way of Perfection, by Teresa Avila teresa_of_avila_way_of_perfection.pdf
Puruit of God, by A.W. Tozer tozer_pursuit_of_god.pdf
The Imitation of Christ, by Thomas a Kempis kempis_imitation.pdf
The Spiritual Exercises of St. Ignatius of Loyola exercises.pdf
On Loving God, by Bernard Clairvaux bernard_of_clairvaux_on_loving_god1.pdf
Apprenticeship to Jesus 
Hey, I like what you are doing here. Dallas and Renovare both partner with us. We have a site devoted to spiritual formation, called http://www.metamorpha.com. I hope you will check it out, and I hope it will be a blessing.
In His faithfulness, kyle