Clixsense is one that site where you earn by viewing ads and completing surveys. You will earning over 0.0001-0.001 dollar for viewing an ad. You can get 20-30 ads daily. The pay out is 10 dollars. It easily takes 4-6 months to get the payout. They send payment through paypal.
Clixsense is for those who have large network. You have to refer more number of people to earn more money. You can complete surveys, view ads and play games and many more. If you cannot refer more number of people, it is waste of time.