TinyLetter is a perfect platform and probably not dying (2018)

And now we also have Substack and Ghost, too. The Atlantic has a good overview of this[1], and Stratechery has a good piece on journalism/content business models in general[2].

[1] https://www.theatlantic.com/technology/archive/2019/10/subst...

[2] https://stratechery.com/2015/popping-the-publishing-bubble/