Millennials are less likely to join membership organizations than older generations. While they cite the same top reasons for joining as older members, such as networking and quality content, the importance of these reasons is weaker for Millennials. Millennials renew memberships when they feel a sense of community connection. Non-members do not join due to never being invited. Millennials are less engaged with organizations than older members by attending fewer events and reading publications less frequently. All generations highly value peer-reviewed journals, but non-member Millennials prefer continuing education resources more. Younger generations want greater engagement from organizations and have lower satisfaction levels the newer the generation.