LinkedIn is the New Craigslist – Craft Ventures – Medium

Vertical marketplaces that involve fractionalized labor (eg, tasks, gigs, freelance work or short-term assignments) are particularly interesting. These fractionalized labor marketplaces have three key advantages over pure job sites that are focused on full-time employment. First, the fractionalized labor marketplaces tend to have high repeat usage on the supply side because the workers come back frequently to find the next money-earning opportunity.
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Fractionalized labor is a fancy term for piece work. It works best for companies when there is as large undetemployed workforce that will come back for more time and again.