I am working on a freebie site. Basically my site provides links to special offers and freebies. Alot of the links will be from an Affiliate Network. I would like to implement something similar to [url removed, login to view] and [url removed, login to view] where by registered users will receive cashback/ bonus points for certain links they click and then register on. Does anybody know how these sites acheive this as its not as simple as just giving a bonus when someone clicks on a link as for me to earn it might require the user to actually register somewhere. I am really stuck on this is I cannot see a way to monitor this. Any help, preferably with examples would be appreciated.