You tube is a website where you can see every type of video. You just need to think and type in search section and video will be in front of you. Every music, promo, movies, teaser, trailer, cooking videos etc etc. This is known worldwide and it is running under google umbrella. Now this is also a source of income because you can also start a channel here and if you receive the desired number of followers on you tube channel then google pays you directly as a income. So, if you have any content which is uncommon then it can be taken as a source of income to you. You can broadcast anything but that should not be violent, abusing or sex content. I am fan of you tube as they have millions of videos running on net. I also use to follow due to training videos available on their channels. You can also view comedy videos available on you tube. You can also watch entire movies available on you tube. If you have missed episodes on any daily soap then this is also available on you tube. You can not imagine you much material this site has. You need to be focused for learning and you can enhance your knowledge.