Mr. Williamson presented this paper in September 2013, at the Sixth Council on Dispensational Hermeneutics, Clark's Summit, PA. It addresses an Old Testament response to "Third Wave Theology".
Signs and Wonders in the Old Testament - Mr. Joel T. Williamson, Jr.
In 2005, Calvary Theological Seminary sponsored a lecture series on dispensationalism. Click on the link below for their notes along with a mp3 of each lecture.
Why Dispensationalism? - Various