A Massive Open Online Course (MOOC) is an online course aimed at unlimited participation and open access via the web. In addition to traditional course materials such as videos, readings, and problem sets, MOOCs provide interactive user forums that help build a community for students, professors, and Teaching Assistants (TAs). MOOCs are a recent development in distance education which began to emerge in 2012.
Although early MOOCs often emphasized open access features, such as connectivism and open licensing of content, structure, and learning goals, to promote the reuse and remixing of resources, some notable newer MOOCs use closed licenses for their course materials, while maintaining free access for students.
Here some MOOC-site links has been given for the students & professionals. By clicking on the link, one can easily go through the desired website & elect a course/ topic to learn as for free of cost. (NOTE: To earn a course completion certificate, scholars might be asked to pay)