Bought the domain for Mailing List Hackers, and got a Ghost blog set up for it!
Since then, I've been publishing some initial content on the site to help set the tone and pace for content on the site.
A great way to generate initial content — write in a very meta sense about what you're working on. While it's slightly off-topic for newsletters technically, I started by writing some guides for getting Ghost set up to send emails (in anticipation for talking about their new + awesome "Memberships" feature), as well as a case study on building a Stratechery-style member-supported newsletter/blog using Ghost: