Facebook boasts of a few super-talented in-house developers yet it does not want them to be sucked into repetitive nitty-gritty of administration. That is why they contract moderation to such large companies as Accenture. Not only tech giants, American express and other credit-card companies seek the talent of the Philippines, India, and Latin America, when it comes to customer-support. This is a win-win since they reduced their expenses yet provided their customers with coverage 24/7. In terms of Proof of Work in Outsourcing, Skype was a breakthrough in the market, created by the European software geniuses, preceding the dominance of Zoom, Google Meet and Slack.