Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Journeys by Indicative - Discover all the paths customers take through your product
EmailWay - Collection of the most insightful and informative email newsletters from across a wide spectrum of industries and interests
Plainflow - Behavior-based customer journeys for your SaaS
Really Good Emails - A large collection of good product email design.
Auditzy - A first-in-class application provides an easy-to-use web page audit platform to technical and non-technical users.