Aside, but is there a good class or resource for learning about parallelism in computing? I'm reading the blog post and vaguely recalling differences between th

Aside, but is there a good class or resource for learning about parallelism in computing? I'm reading the blog post and vaguely recalling differences between threading and forking. I regularly encounter the same concepts over and over but they haven't been sticking. A hands-on project would be great.