Youtube is a good platform to learn. I am very impressed with this google approach because youtube is a part of google. I always use to watch videos on youtube. Youtube is used not only for watching online songs or movies but it can also be a solution of a problem. I you have any problem related to anything else just search on the youtube with keywords, it will give you the answer in the form of visual clips. so my suggestion for all is that grab the knowledge through youtube the more you can.