This article shares the curriculum and evaluation findings over four years for a faculty development program aimed at increasing skills in designing and teaching online courses. The University of Louisville's "Delphi U" is a four-day retreat style program covering 17 modules, each of which includes an exercise or activity. Over the four years, evaluation data guided continuous improvements in the course to meet faculty needs. Overall course satisfaction was generally very high with many scores remaining at or above 5 on a 6 point scale, although some issues still exist with the topics of using online technologies and applying copyright law.