The next free Craftsy mini-courses that I'm planning to take are:
Know Your Wool: This class promises to tell all about different types of wool and their individual characteristics. It could be really helpful for selecting and substituting yarns for my own designs and other projects.
Short Rows: This class teaches a variety of techniques for creating short rows. It should prove useful for the shwal designs that I'm working on now.
And if you're into crafts other than knitting, check out all of the other free Craftsy mini-courses by clicking here. I'm tempted by some of the quilting and sewing offerings!