Sketch Talk - A community for Sketch users of all skill levels
Sketch 101 by Designlab - Learn Sketch in this free course w/ downloadable templates
SketchCasts - A weekly screencast, all about how to use Sketch
The Design Thinking Workshop Kit - A free digital and print kit to help run your own workshop
The Good Workshop - TGW helps experts plan, run, and track UX, CX, Product and innovation workshops, fully automated and straightforward user experience.
RookieUp Career Bootcamps - Tools to help designers build great portfolios and get jobs.