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!
Programming for Marketers - Free email course for wannabe technical marketers
Quokka (formerly Kryptowire) - The gold standard in SAST, MAST, IAST, and more!
Olyo - Direct marketing via Facebook Messenger
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Neovidya - Neovidya provides structured access to high-quality educational content.