Despite regulatory upheavel for Uber and AirBnb, the US's on-demand workforce is only adding to its numbers.

With a potential 7.6 million freelancers appearing at all corners of the US workforce by 2020, the on-demand workforce would grow to 11% of all self-employed.

This is due to several causes. Many family units don't want to live on a single paycheck.

Others have watched pensions evaporate, or worked through the vulnerable conditions of the Recession. Some companies, particularly in Tech, are being forced to reclassify their contingent workforce as offical full- and part-time employees.

Nonetheless, many workers enter the freelance market in search of part-time work and nothing more. 80% of respondents indicated that they didn't want to be traditional employees to a company.

Though the freelance worker landscape will continue to evolve, analysts see it as a 25 or 30 year development, not one that has popped up overnight.

With contingent workers increasing in numbers, their role in the American and Global workforce will be a vital one.

Read full article at Silicon Beat.