I would like to be able to have a prize giveaway. When a new user that becomes a member of my forum because a current member referred them to my forum, the current referring member gets an entry into my giveaway.
For this to happen, I need to be able to track the number of new members that are referred by my existing members individually. This would be done through using links, or a particular banner, sort of like an affiliate program, except that my "affiliates or current members" are not referring people to make money off of the new members purchases, only to earn entries.
I know of this affiliate program, but like I said, not sure if will give me the information I need:
I also saw on a site where they were doing a similar "giveaway", except that the "contest" was only for people who registered with a facebook button, and that only people who referred their facebook friends were eligible for earning entries. I assume they somehow used Facebook API to track the number of new members, that the current members referred through their facebook walls...
Any help or insight would be appreciated. I just need a basic working way to track this.
Thank you in advance!