Heres a example...
These type of sites are known as 'advertising sites' understand that? They get people to sign up as they offer a reward, so they get a task, say to get ten people to sign up under there link once they reach there target they get paid.
http://www.this50buxisfree.com/ Is the normal website the "?r=2226" the
r stands for Referal and the "2226" stands for what number user that is. Hopefully that makes sense? if not ill try explain a bit better
