Really Good Emails - A large collection of good product email design.
Startup Digest - Personalized newsletter for all things startup in your area
Good Sales Emails - Best sales emails from great companies
Check Your Pulse - A tech and startups newsletter that makes you feel human
Great Email Copy - A dose of emails from around the web.
Unicorner - Unicorner is the startup newsletter that breaks down and sends one up-and-coming early-stage startup to your inbox every Monday morning.