Effectively sites where people could post projects of what they needed done, and then freelancers would bid on the project in an attempt to gain the work. (amyharrop.com)
Yes, there are plenty of platforms out there that have a slew of eager freelancers just waiting to bid on projects like yours. (inc.com)
You post a job, and freelancers from all over the world will then bid on your project. (writingbytheseatofmypants.com)