How Can I get money for surfing?

Its realy tough to first of all being able to earn just from surfing the net(not physically or mentaly but somewho it is hard) and its even harder to find the way if there is any. I am providing you with a link, I really it will be useful to you and me too. http://www.500cents-500dollars.org/pages/index.php?refid=rajcoolmail