Earning Money By referral Programs
Using Internet, Any Company/firm/Individual can earn money, being a publisher means by placing the ads of advertisers on their properties that can be any website/blog. The earning procedure is directly related with the traffic of your website/blog. As much more the users visits your site daily, the possibility of ad clicks will also be increased. So someone wants to earn more through the internet wants to increase the traffic of the website. The referral program is directly associated with this traffic.
Some site owners considers that if they make such a system that more users visits their site daily and the earning through ad click may also be increased. Therefore they allow a user to get register to the site and provide a referral link. A user have to get the referral link and then paste that referral link to other social sites (like website that allows you to place free ad, Facebook, twitter and other social sites) so that more and more users from there can come to site and also gets registered and get a referral link they will also do the same as you did. By doing your such working, the traffic of that particular site will definitely be increased and you will be paid for that work by the site owner.