I’ve been rubbing it for over 3 years now and I’m approaching 3k e-mail subscribers. I feature it quite a lot on LinkedIn and Twitter and sometimes I would share some issues on /r/robotics or HN.

So far the best way I’ve found for growing subscribers is trading shoutouts with other newsletters but I didn’t experiment much with paid ads.

It depends what you are interested in. My latest find from this week is the Introduction to Autonomous Robots open source book: https://github.com/Introduction-to-Autonomous-Robots/Introdu....

If you were looking for news then sUASnews is great for some catching up on drones. For robotics I often find articles on IEEE Spectrum and The Robot Report interesting.