The lack of virality in an email newsletter still puzzles me. This is my list. Straight line. You would think more subs would mean more forwards and more subs, but no.
1/
Get a cup of coffee.
In this thread, I'll walk you through the economics of an internet newsletter.
If you want to start your own newsletter (or are just curious about what it takes to run one), this thread will give you some useful pointers.