Khan Academy
Hello friends, You might have been learned physics, chemistry and mathematics using classical method of board and chalk. But using the technology for making the students well educated Khan Academy provide the videos. On this channel Khan Academy provides video lecture for the students. Anyone can access this videos for free of cost. YES! Its free of cost forever. You don't have to pay any charge. This is a Zero Profit organization for providing video lectures. Even any one in the world can access these things from YouTube and also the its website. But for the Website you have to log in to the Website. Its very easy process to even sign up for new user. Its really easy and very useful. This organization was established by the Salman Khan. This organization have got millions of dollars as the donation for expanding the organization to whole world and not just USA. This organization have given education to millions of peoples in the world including me :). Yes I am also a