The purpose of this online Delphi was to explore the professional development needs and preferences of adjunct faculty, specifically those who teach online. The study involved adjunct faculty who were categorized by their self-selected type of adjunct faculty member: specialist, aspiring academic, professional/freelancer, and career-ender. Through the evolution of the online Delphi using a crowdsourcing platform, the ideal professional development programs for adjunct faculty were identified. The ideal professional development programs for adjunct faculty are a blend of delivery methods and topics depending on the type of adjunct faculty member. As many institutions will not know the specific type of adjunct faculty member they employ, it is important that they approach the development of the professional development program with the various professional development needs and delivery methods in mind. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]