Outsourcing marketplace Freelancer.com (formerly known as GetAFreelancer) has hit a milestone: 2 million professionals have registered for its service to date.

That�s up from 1 million in October 2009.

The Sydney, Australia-based startup says the 2 million users (which I seriously doubt are all active) hail from 240 countries. The largest country represented is the United States, with over 21% of users. Second to the U.S. is India, with 19%.

Following the top 3 countries, in order, is the UK, Pakistan, Canada, the Philippines, China, Bangladesh, Romania and Australia.