Vinai Koop has opened his Mage2.tv service/channel as a free public beta. Right now there’s over an hour of free Magento 2 tutorials, and a roapmap for what content’s coming next. It’s also an interesting example of a single person’s vision for a video delivery system. These sort of systems are common, but are usually the product of an Enterprise Sales team or Global Digital Brand — both markets that lean away from simple straightforward software.
If you’re working with Magento 2, I’d label anything Vinai puts out required viewing/reading.