Good addition! Here are some more:

https://ferd.ca

https://blog.filippo.io

https://lethain.com

http://movingpackets.net

https://www.integralist.co.uk

https://peter.bourgon.org/blog

https://engineering.linkedin.com/blog

https://begriffs.com

https://mijailovic.net

http://tatiyants.com

http://blog.pentestbegins.com (seems down right now?)

https://kalzumeus.com/archive

http://blog.stephenwolfram.com

https://paragonie.com/blog

https://www.filfre.net

https://brandur.org/articles

http://archagon.net

https://eklitzke.org

I guess I could go on forever…