One channel that’s particularly valuable for many marketers, particularly in the affiliate industry, is live video (for webinars, etc), so this is great news:
YouTube Creator Blog: Investing in you: more tools to build your channels: “Start live streaming if you have 100+ subscribers: All channels in good standing with at least a hundred subscribers will be able to live stream, within the next few weeks. Check your Account Features page for an ‘Enable’ button, and click it if you’re interested.”