Massive Open Online Course (MOOC) was entered at Wikipedia as:
"A massive open online course (MOOC) is an online course aimed at large-scale interactive 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 the students, professors, and teaching assistants (TAs). MOOCs are a recent development in distance education.
Features associated with early MOOCs, such as open licensing of content, open structure and learning goals, and connectivism may not be present in all MOOC projects, in particular with the 'openness' of many MOOCs being called into question."
As of this blogging, there is still no self-paced on-demand MOOC course that generate free certificate.
Wikipedia lists the following MOOC top non-profit providers:
World Mentoring Academy - FREE Interactive Learning OpenCourseware from MIT, UC Berkeley, Harvard, Yale, Stanford, U Houston, USC, UCLA, Khan Academy, NPTEL.
iversity participated by Universidad Autonoma de Madrid, University of Florence, University of Hamburg.
edX participated by MIT, Harvard University, UC Berkeley, Kyoto University, Australian National University, University of Queensland, IIT Bombay.
Academic Earth participated by UC Berkeley, UCLA, University of Michigan, Oxford University.
FutureLearn participated by University of Reading, Open University, Monash University, Trinity College, Dublin, Warwick University, University of Bath, University of Southampton.
Peer 2 Peer University (P2PU) , according to wikipedia, is a nonprofit online open learning community which allows users to organize and participate in courses and study groups to learn about specific topics.
Khan Academy, according to wikipedia, is a non-profit educational organization created in 2006 by educator Salman Khan to provide "a free, world-class education for anyone, anywhere.
The Saylor Foundation, according to wikipedia, is known for its emphasis on finding, vetting, and assembling openly available texts and resources into courses resembling those of a traditional brick and mortar institution which are then peer-reviewed before being published.
MOOEC, according to wikipedia, is a free non for profit resource that featured more than 50 free lessons at launch in November 2013, it is developed by 15 Queensland colleges and universities including the University of Queensland ITCE, Griffith University GELI, Queensland University of Technology and many private providers.