A complete guide for resources to use for learning techniques and strategies for SEO, PPC, Social Media, chatbots, design, email, and inbound marketing. — Have updated the guide with all new content for 2020. TLDR: You can absolutely learn Digital Marketing for free. There is a ton of content out there for you to go through and that’s the problem exactly. To solve this problem, I have compiled this guide which lists some of the best sources you can leverage to learn Digital Marketing for free. Enjoy!