Youtube is a excellent source of information. Different-2 types of information available in you tube. With the help of youtube information you can make anything if you want. Youtube gives chance to its own user to earn money. User can make money online with the help of youtube.
But firstly you have to create adsence account then earning will be start. Youtube given money to its user when user uploaded the informational video. you can save video offline in youtube app.
Youtube app takes very less time to loaded. My personal opinion is this is excellent app.