Γενικά: εδώ, εδώ και εδώ
MOOCs and Open Education Timeline (updated 2015 version)
MOOCs
https://www.mooc-list.com (List of many MOOCs )
https://mathesis.cup.gr
http://coursity.gr
https://www.coursera.org
https://www.edx.org
https://www.kadenze.com
Khan Academy
http://academicearth.org
OCWs
MIT OpenCourseWare