I found these fabulous machine knitting tutorials by kissandmisshim. He does a great job enthusiastically explaining how to get started on machine knitting. So if you;re new to the idea of machine knitting, or have been thinking about getting a machine, here;s a great way to get started! I think it's possible for a machine knitting revival if more resources are available over the internet.
Also, Knit-1 (where I took their Design Workshop) has recently set up a shop. You can buy downloads for machine knitting tutorials on specific techniques, as well patterns. So if you can't make the course, this is one way to learn independently.