AppThemes Hirebee Theme
HireBee is a freelance marketplace theme for WordPress. Employers post projects and freelancers start the bidding. You setup the pricing plans and take a cut of each project. It’s easy to monetize any niche by providing a crowdsourced project matchmaking service!
Sites like Elance, Upwork, Freelancer, oDesk, and 99designs and perfect examples of this type of successful model.