Picoworkers is another example of a GPT site where freelancers can find work. It is a freelancing, outsourcing and crowdsourcing marketplace which connects clients and freelancers from around the World.
Clients can hire freelancers to do work via the Picoworkers platform in areas such as promoting social networks, writing, testing websites, data entry, searching, installing and testing mobile apps through to language teaching, translation, sales and marketing, accounting, and legal services.
Picoworkers also has a Referral Program where you can get paid a percentage from every deposit made by clients you introduce and from each task performed in your downline.
You can register for free using this link for Picoworkers and view the video on my YouTube Channel.