Nearly 5 million people in the UK are now self-employed. Technology has made it easier than ever to open a business or offer your services to others willing to pay but this shift towards gig employment concerns many analysts including Dr Ming Lim. Dr Lim is an Associate Professor in Marketing and Management, University of Liverpool. She argues that many of the folks we see, tapping away at computers at off hours in coffee shops are actually working for click-farms and the work they do, is actually a form of slavery.