The Wasatch Gnostic Society out of Salt Lake City, Utah includes 3 Tolkien lectures in their archives written and let by Dr. Lance Owens. The series entitled J.R.R. Tolkien - An Imaginative Life is in three parts. It also hosts additional reading for those who want to delve deeper into the life of Tolkien. The tree lectures; Discovery of Faerie, Tolkien at the Crossroads & Tolkien and the Imaginative Tradition are available for download. Complete and well constructed I recommend these lectures highly.
J.R.R. Tolkien - An Imaginative Life