I recently came across this series of articles by Lori Carrell. She is a professor of communication at the University of Wisconsin. These articles are the results of research done for a Lily-endowed Center for Excellence in Congregational Leadership. She did a survey of more than 10,000 sermon listeners and a number of pastors as well. I found these articles encouraging and helpful. If you’re a preacher, I highly recommend them!
Sermons Most Likely to Succeed
The Perils of Power Point Preaching
Are You Wasting Your Sermon Prep Time?
Reaching the Choir