What do u think about these online paid sites?

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Hey I was thinking anout that there are many sites availabal to Earn money Like Paid Mail Clicks some are like mylot Get SMS & paid Refferal Network Marketing Data Entry These are all different category which provides different methods of earnings and in these different categories there are many sites available in each category, So, the question is In these whole network, Which are trusted sites? Which are realy works? Which provide real money to the users? Whos responsible behind fraud sites/