This week's book giveaways are in the Refactoring and Agile forums. We're giving away four copies each of Re-engineering Legacy Software and Docker in Action and have the authors on-line! See this thread and this one for details.
I've posted on my blog regarding my experience with producing on-line training content. The market for producing on-line training courses is rapidly growing and I hope this can help you to understand what it takes to get started.