Freelance work is also on the rise, with 34% of the American workforce doing it.
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Interesting figure ; nevertheless, let’s acknowledge that freelancing often correlates with high unemployment rate : http://www.economist.com/news/economic-and-financial-indicators/21660991-self-employment

(I’m a happy freelancer myself, but I know people who freelance because they cannot do otherwise. Anyway, thanks for the links below, I’m gonna try some of them!)