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edX - Access 2500+ Online Courses from 140 Top Institutions, including Harvard, MIT, and more (you can pay for a verified certificate of completion, but that is optional)
IU Expand - Enroll in non-credit, continuing education credit, and certificate-based courses (both free and fee-based). Some are self-paced, self-study courses, while others involve online or in-person sessions
Leadership Johnson County - Offers paid educational workshops and seminars that will help you and your organization thrive in a competitive business environment
Organizational psychologist Adam Grant - "Worklife with Adam Grant: A TED original podcast" takes you inside the minds of some of the world’s most unusual professionals to explore the science of making work not suck
PBS TeacherLine - Flexible, online professional development for PreK-12 educators.