Newsletter Operating System - All-in-one dashboard to launch & grow your newsletter
Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Letterfuel - Grow your audience with a curated newsletter
WhoSentWhat - We bring email newsletters from inbox to web
Newsletter Resources Kit - A resources kit to launch, grow, & monetize your newsletter
Really Good Emails - A large collection of good product email design.