The freelancer goes to the site, searches for jobs that are taking bids, and places a bid to do the work. Bids win for a mixture of experience and price, and the best bid wins, not the lowest. In some categories I saw bids that were so low, they disqualified themselves by simple ignorance. The winning bidder gets the job and pays Ants. Com five percent when the check arrives.
Freelancers can build an additional five percent into the bid to cover the commission.
All can benefit from a close look at this extensive site. This is a delightful site with a charming lightness to it. Lots of links to good resources. Com is loaded with neat resources and tools that can help simplify many tasks. Michael Wong, the webmaster, is one of the most knowledgeable fellows I have met on the Web.