Here is an annotated list of potentially useful resources, starting with my old blog, QED Insight [mathematics, science, education, and more]. I haven’t updated it since 2013, but it still has a significant number of visitors per year. At some point I will migrate the content over to this site, but in the mean time the content is still there if you would like to check it out.
The rest of the links to potentially useful resources are at the following pages:
If there are other resources that you would like to see listed here, please send me the information by clicking here.