Top 3 Online Education Websites

The Following three educational websites provides thousands of different courses from the best universities and colleges of the world in almost all the fields of education. 
here is the introduction to those three educational websites :
Academic Earth is an organization founded with a purpose of making it possible for all people on the earth to have an opportunity to get world class education. It’s mission is to give accessible higher education to the world. It has distinct characteristics compared to all other educational websites that makes it standout  in the web race.
The way Academic Earth works is that it partners with all educators around the world who are willing to contribute to the goal of making higher education accessible to the world. Academic Earth gets its resources from many great universities.  It is a video driven website and contains :
  • Lectures Videos
  • Tutoring Videos
  • Test Prep Videos
Using videos as a means of education has many benefits. Learning by watching videos may be more interesting than reading a textbook. Videos make every users feel that the instructors are just in front of them. Videos may make learning easier for many people who learn better when they hear and see.
Academic Earth has a variety of subjects, here are some categories :
  • Business
  • Computer Science
  • Mathematics
  • Engineering
  • Science
  • Humanities
  • Social Science
  • Art and Design
  • Test Preparation
It partners with the top universities in the world to offer courses online for everyone to take, for free. Its aim is to give everyone access to the world class education that has so far been available only to a selected few. The motto is to empower people with education that will improve their lives, the lives of their families and the communities they live in.
Classes offered on Coursera are designed to help the user to master the material. When he/she takes one of the classes, they will watch lectures taught by world class professors, learn at their own pace, test knowledge, and reinforce concepts through interactive exercises. When the user joins one of the class, he/she will also join a global community of thousands of students learning alongside. These days life is too busy, and that people have many commitments. Thus ,the courses are designed based on sound pedagogical foundations, to help the user master new concepts quickly and effectively. Key ideas include mastery learning: to make sure that the user have multiple attempts to demonstrate  new knowledge; using interactivity: to ensure student engagement and to assist long term retention; and providing frequent feedback: so that he/she can monitor his/her own progress, and know when the material is actually mastered.
A wide range of courses are offered spanning :
  • Humanities
  • Medicine
  • Biology
  • Social Sciences
  • Mathematics
  • Business
  • Computer Science
and many other conventional and even some non-conventional courses like that of music, genetics etc. can be found.
Tips to improve resume, advance in career, or just learn more and expand knowledge, etc. everything can also be found on the website. And the most important and interesting thing is that, there is no or very basic pre-requisite for most of the courses on coursera.
NPTEL is an acronym for National Program on Technology Enhanced Learning which is an initiative by seven Indian Institutes of Technology (IIT Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras and Roorkee) and Indian Institute of Science (IISc) for creating course contents in Engineering and Science. It provides around 100 courses as web based supplements and 100 complete video courses, for forty hours of duration per course.
The focus areas of NPTEL project has been on
  • Higher education
  • Professional education
  • Distance education
  • Continuous and open learning .
A large number of students who are unable to attend scholarly institutions can have access to quality content through NPTEL.