website similar to elance.com

We want to develop a site that is similar to [login to view URL] where people can post and bid for projects. Please let us know what technology you are going to use, including programming language, platform and database. ## 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 web application, all platform