No one ever stops learning. “Knowledge is power,” after all – but sometimes it’s hard to find what you’re looking for. Or you have something in mind but don’t know where to start. I combed through dozens of bookmarks and sites which collected links, removed links which no longer work, and organized everything into one easy-to-read post.

This is a list of sites where you can learn whatever you want. Free courses, low-cost certificate programs, free books, and more. You can finish some things in minutes, and others may take months.

Free courses:

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