Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Inside.com - Real news, curated by real humans
WhoSentWhat - We bring email newsletters from inbox to web
Email Tuna - Explore newsletters without subscribing
Really Good Emails - A large collection of good product email design.
Nuzzel's Network of Newsletters - Easiest and fastest way to curate an email newsletter