Coursera, University of the People, Nuclino, Engineer4Free, RoaldoEdu, Grok Learning, OpenCourseWare Consortium, iTunes U, Academic Earth, Learnamic, MyEducationPath, Eureka.in NSES, Quick Code, Humbot, ShowMe, OpenLearn, Open Yale Courses, FUN MOOC, Degreed, Pocket Scholar, NovoEd, Sunlight, Harvard Open Courses, Course Builder, MOOC2Degree, Hexib, Wikiversity, Open Learning Initiative, Vectorly, KnowledgeHut, openHPI, Curcle, COLLEGE STASH, Coursistant are some alternatives to Wikibooks.