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2. Massive open online courses;Wulf;Business & Information Systems Engineering,2014
3. Empson , R. 2012 Online learning marketplace Udemy lands $12M to expand its course catalog, go cross-platform TechCrunch http://techcrunch.com/2012/12/07/online-learning-marketplace-udemy-lands-12m-to-expand-its-course-catalog-go-cross-platform/
4. Udemy.com Everything you need to teach online www.udemy.com/teach/
5. Udemy.com Udemy course checklist https://docs.google.com/document/pub?id=1SbCv-uFZk6LiUh0D8tuwRmlK1Ybgnom0wXIPjvjuOdg