BiggerCake - The data tool that Kickstarter deserves
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Campaign Monitor Insights - Actionable analytics for email marketing and automation
Email Marketing: A Beginner's Guide - Master email marketing with these 3 short ebooks from Drip.
Snov.io - More leads. More sales. More revenue.
Email Marketing Academy from MailerLite - Learning platform for email marketing expert certification