Social-referral is a project mainly written in RUBY and JAVASCRIPT, it's free.
social referral backend to build diff variants of social incentive systems
A system to entice users through incentives to refer offers to their friends via social networks. The offers will have further incentives to encourage those referees to accept the offer as well as continue to refer friends in their social networks. The process continues on to third, fourth, and so on, degree of social connection; thereby creating a rapid, self subsisting referral system.
An integrated url shortener will facilitate sharing and tracking of offer referrals.
Referral
Referer can refer offers to friends via facebook, twitter, email, etc.
Referer can choose an incentive from a list of incentives
Referral Tracking
Referer can track events on referrals such as visits, signups
Referer can track referees and which social network they came from
Offer
Admin can set incentive to refer and incentive to accept offer
Admin can manage offers
Referer receives new offer acceptance acknowledgement with referral incentive reminder
Offer Tracking
Admin can track the numbers of referrals on an offer
Admin can track number of offer acceptance, and their source
Admin can track status of redemption: email sent, redeemed
Social Network