Here are 10 popular education portals in the world:
EdX - Offers online courses from leading universities and institutions from around the world, including Harvard, MIT, and Stanford.
Coursera - Offers online courses from top universities and institutions from around the world.
Udacity - Offers online courses and certifications in technology and business-related fields, with a focus on professional development.
Khan Academy - Offers free online courses and resources for K-12 students, as well as college-level courses.
FutureLearn - Offers online courses and degrees from leading universities and institutions from around the world.
Alison - Offers free online courses and certifications on various topics, including business, technology, and healthcare.
OpenCulture - Offers free online courses, ebooks, and audiobooks from leading universities and institutions from around the world.
MIT OpenCourseWare - Offers free online courses and resources from MIT.
Stanford Online - Offers online courses and degrees from Stanford University.
Harvard Online Learning - Offers online courses and degrees from Harvard University.