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check these top public speaking course websites:
1. http://www.gingerpublicspeaking.com/ted-free-video-course/
2. https://www.class-central.com/mooc/889/coursera-introduction-to-public-speaking
3. http://openlearningworld.com/public_speaking/index.htm
4. https://learn.saylor.org/course/comm101
5. http://www.ed2go.com/uwecce/online-courses/public-speaking-mastering?tab=detail