1. The Year of the MOOChttp://www.nytimes.com/2012/11/04/education/edlife/massive-open-online-courses-are-multiplying-at-a-rapid-pace.html?_r=0
2. Der Beginn und das Ende von OPEN. Chronologie der MOOC-Entwicklung;Schulmeister,2013
3. Udacityhttps://www.udacity.com/
4. Udacity’s Sebastian Thrun, Godfather of Free Online Education Changes Coursehttp://www.fastcompany.com/3021473/udacity-sebastian-thrun-uphill-climb
5. Are MOOCs already over?https://www.washingtonpost.com/news/answer-sheet/wp/2013/12/12/are-moocs-already-over/