Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Newsletters by Refind - The easiest way to email a link digest to your fans
EmailWay - Collection of the most insightful and informative email newsletters from across a wide spectrum of industries and interests
Newsletter Operating System - All-in-one dashboard to launch & grow your newsletter
Really Good Emails - A large collection of good product email design.
Newsletter Crew - Podcast, blog, and community for newsletter creators.