Answer by Not your average Joe!
This is a great question and one that’s often asked. While there are TONS of resources online stick with reputable programs. Sure you can learn stuff from people who say they’re experts but they may teach methods that are considered ‘blackhat’ (tactics that the search engines may penalize you for).
A highly recommended program is from the University of San Francisco who offers Internet marketing training. Here’s the link to the list of courses that are available.
For more recommendations on this course check out LinkedIn and there’s usually people talking about the program.
Know better? Leave your own answer in the comments!