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The key skill sets are determined by whom you are targeting for training. Customer acquisition channels will also be determined by whom you are targeting.
Hosting the trailer on your site without permission is definitely not allowed, but you are probably allowed to embed a YouTube player with the video. In that situation you'd only need to check YouTube's terms of use, not the original copyright holder (disclaimer: I'm not a lawyer and the legal si...
One option is to create drip campaigns that can run automatically after creation. That way you've got content being fed to your audience on a schedule (X days from sign-up), and your overhead is much lower in terms of generating new content. When you have something meaningful to say, you can se...