Scuttleblurb, David Kim's SubStack, sends out in-depth write ups of companies. It's technically an investing newsletter, but it's really more about the mechanics of a given industry and how a particular company or group of companies operates within that industry. Similarly, and these aren't newsletters but they do come out at newsletter-like frequencies: the Company Man and the Wendover Productions YouTube channels.
Granted, these aren't specialized in terms of a single industry or single tech field, but, if you're a business enthusiast / love learning about industries you previously didn't know about, these are excellent.
Granted, these aren't specialized in terms of a single industry or single tech field, but, if you're a business enthusiast / love learning about industries you previously didn't know about, these are excellent.
https://www.scuttleblurb.com/ Company Man: https://youtube.com/channel/UCQMyhrt92_8XM0KgZH6VnRg Wendover Productions: https://youtube.com/c/Wendoverproductions