I've been working on growing my newsletter; I talk about Entrepreneurial Science & Behavior Science.
Tried a few different things like HN, Reddit, etc. Some more successful than others but one thing that seems to work well is newsletters cross-promos.
Probably preaching to the choir here, but it appears that if you want to grow a certain medium, it's best to do that via that medium.
I.e. Twitter via Twitter, FB via FB, Newsletters via Newsletters; instead of FB ads to drive newsletter subs.
Just a conjecture though, haven't done formal research.
Anywho, just did a cross-promo with my buddy @TheWonderingZall, and am looking for people to cross-promo with.
If you're interested as well, drop a comment below with what you do, so other people can connect with you if there's a good fit.
I've found similar results with cross promotion. It's been a challenge to find good cross-promotion partners with my newsletter, because it's so different than many of the business, science, news newsletters that are out there, but when I find a good partner, I generally get at least a few dozen new subscribers every time.
Could you DM me on Twitter. Perhaps we have overlap. My essays are about the strategy and principles behind branding, marketing, and other components of entrepreneurship.
I'm looking but specifically for sustainability/social impact newsletters!
Hey, consider cross promotion with my newsletter. I write about sustainability quite often through the lens of chemistry.
The link doesn't work but can you email me at team@soapboxproject.org with details on cross promo? Sounds cool!
Seems very interesting :) Good luck!