This document summarizes research on the role of e-learning in workforce development. It finds that e-learning can help overcome barriers to training related to access, motivation, and experience. Key supports for effective e-learning include integrated course design, learning support, and an organizational learning culture. The research also found that e-learning can increase productivity through reduced work disruptions, deeper learning outcomes, and faster adoption of new technologies. However, e-learning requires investments in content, learning design, and learner support to achieve these benefits. Future research is needed to better understand e-learning's impact on overcoming learning challenges and linking learning outcomes to productivity gains.