321 Go MD
I recently learned about a pretty cool site developed by an orthopedic surgeon who is also a CrossFit athlete. While I’m not advocating using this site to self-diagnose any issues you may be having, it is a really good resource to better understand many common issues that CrossFitters may encounter. The info is free and sorted via body part. Best of all, the doc isn’t trying to sell a membership to an online course/certification or subscription of any kind.
Check out 321GoMD here.