How to make money from Youtube videos?

@biman_s (1060)
India
March 18, 2013 2:23pm CST
I have been making some videos in youtube in order to see how youtube videos can generate a stream of income and till now I have been not quite successful. Although I have seen a little bit increase in my referrals and other income streams. How does professionals earn money from youtube? Please share your thought and also enlighten me on this topic.
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