Basically I have used this site for a while and not earned much, but my friend on the other hand earns loads. His basic plan is that he makes a fake download for an album, tv show, video game, ect that people will search on like. Then he creates a Youtube video for that download of course stating that it is real. He spent like 2 hours a day for a few days and now earns an extra 20-50 a month from downloads from his old videos. I am sure if he put up more he would earn more.
If you want to try the site out for yourself here is a link: http://sharecash.org/