Site similar to netflip dot com

I am in need of a site similar to netflip.com. I will be offering the same programs and same or similar incentives. I will also need a back end or a redemption part ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Exclusive and complete copyrights to all work purchased. (No GPL, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site). ## Platform linux, windows