Khan Academy
Founder
Salman Khan
Founded
2008
Headquarters
Mountain View, CA, USA
Subjects
Math, science, computing, economics
Reach
Hundreds of millions of learners
Image: Khan Academy logo
Pratham
Founders
Madhav Chavan & Farida Lambay
Founded
1994
Headquarters
Mumbai, India
Programs
Teaching at the Right Level, remedial programs
Scale
Tens of millions of children reached
Image: Pratham logo
MIT OpenCourseWare (OCW)
Launched
2001 (MIT)
Headquarters
Cambridge, MA, USA
Subjects
Lecture notes, problem sets, video lectures
Type
Open educational resources / MOOC-style content
Reach
Millions of learners globally
Image: MIT OCW logo