The aging of the workforce in both the U.S. and most developed countries, has important ramifications for workers, organizations, and societies. Over the past few years we have focused on scientific and professional activities that aim to better understand and manage the ramifications of an aging workforce. Our current program of research, supported by the Society for Human Resource Management, examines the motivational and situational determinants of retirement attitudes and intentions. In addition, we have partnered with European researchers to investigate the influence of aging diversity on individual well-being and team-level outcomes. Other ongoing and planned projects in this area focus on the development and validation of “Third Age” selection procedures, identifying employee traits and management/work conditions that promote intergenerational knowledge transfer, and age-related differences in motivational traits and work motivation processes and outcomes (e.g., Kanfer & Ackerman, 2004; Kanfer & Ackerman, 2007; Kanfer, in press)