Polymail Sequences - Simple, powerful multi-stage email campaigns
Good Email Copy - Email copy from great companies.
MailChimp Snap - Send simple, photo-based email campaigns from your phone.
Good Sales Emails - Best sales emails from great companies
GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Really Good Emails - A large collection of good product email design.