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.
PEAR - Connecting newsletters and advertisers 🍐
WhoSentWhat - We bring email newsletters from inbox to web
Revue - The easiest way to create and send a curated newsletter
Really Good Emails - A large collection of good product email design.