There doesn't seem to be any order to the list.
Don't put it on multiple pages, use one page (infinite scroll if you have to.)
This could be very useful but right now it doesn't add enough value IMO.
The list is randomly ordered right now with an ordering that changes daily. What kind of ordering would be helpful? I don't currently have enough information on each newsletter to know its popularity or number of subscribers. I may add upvoting/favoriting to help with that.
I considered infinite scroll, but pagination works better for SEO purposes and was easier to implement with the tech stack I'm using. Might re-visit this in the future.
The typical default order would be by alphabetically by title. If you don't want to add sorting yet that's what I would expect. Other sorts would be name of author, frequency, most recent post, main theme (if applicable.)
> "pagination works better for SEO purposes"
I'm sure it does, but as a user I don't care. Whom do you serve?
If your site ranks higher than some other site with a superior UI isn't that overall a failure of the system?
The best option would be to provide both options: paginate by default and have a switch to toggle it to all-on-one-page, eh?
I think you did a good job in general, it just needs a little polish to relly "pop". Cheers!