Marketing Budgets 2020 - Research on budgets and effectiveness of marketing channels.
Mailook - Identify & fix your email deliverability issues for free 👀
Marketing Teams of The Future - A book for marketers wanting to future-proof content teams
Mailivery - Reach the Inbox, not the spam folder.
Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid
Makerbook - A directory of the best free resources for creatives