1. National Academies of of Science, Engineering and Medicine

The National Academies of Science, Engineering and Medicine offer many free publications in .pdf form. Naturally, many recent ones are related to the COVID-19 pandemic, but there are other topics, such as general public health emergencies. Go to: https://www.nationalacademies.org .

An interesting publication I found here recently is Issues in Science and Technology. I think you‘ll find it interesting as well. See it at https://issues.org .

Let me know if the Academy stuff appeals to you.

Submitted by Michael Schulsinger, N8QHV