Contrary to some of the comments below. I have found freelancer.com to be a great marketplace for finding workers with great skills in developing economies.
I have used multiple freelancers on a number of projects for web design, creative, Seo and virtual assistant.
It's a great portal for connecting with keen, motivated and hungry talent. Like all sites, they're will be problems from time to time - but the responsibility should be on the individuals judgement in finding the right person for your job.