What are the main platforms used by freelancers to sell their services?
I know of Upwork, Hire.bid, Freelancer. What other platforms do you use?
Main attractions for me would be a lot of high-quality buyers, and low platform fees (below 10%). By high-quality buyers, I mean the types that don't expect to pay you $10 per hour, and are able to formulate requirements and milestones properly, do not keep changing them afterwards, etc.