http://freedomsponsors.org http://freedomsponsors.org (disclaimer - I'm the founder) has a bounty system like that. One difference is that users are encouraged

http://freedomsponsors.org http://freedomsponsors.org (disclaimer - I'm the founder) has a bounty system like that. One difference is that users are encouraged to place bounties for existing issues on open source projects issues - the main goal on FS is to kickstart Free Software projects - but you can place a bounty for an "unlinked" task much like Bountify, like this one --> http://www.freedomsponsors.org/core/issue/13/a-complete-jee-sample-application-using-maven-hibernate-jpa-and-google-guice http://www.freedomsponsors.org/core/issue/13/a-complete-jee-... Another big difference is that there's no money escrow. You pay after the task is done, if you're happy with the result.