Web Based Software wanted

Hi, I am looking for someone to find/install a piece of software that is similar to [login to view URL] and [login to view URL] There will be some customization work potentially. But basically I am looking for a web based piece of software where people can signup for free... they are then emailed when people in their network upgrade... so it motivates them to upgrade as well. If you have a look at either of these sites you'll see what I mean: [login to view URL] [login to view URL] Another option is a hosted version of something like the above. Where the software is hosted and managed elsewhere. We can workout a payment agreement if you find something like this. Thanks. ## 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 -