I am going to be writing some small group curriculum on the Holy Spirit. What resources have you found helpful in your studies? I am looking at the following:
Forgotten God: Reversing our Tragic Neglect of the Holy Spirit by Francis Chan
Living in the Power of the Holy Spirit by Charles Stanley
The Shadow of the Almighty: Father, Son, and Spirit in Biblical Perspective by Ben Witherington
Theology for the Community of God by Stanley Grenz
Anything else you would add to the list?