EasyEmail - Gmail plug-in that helps you write emails quickly
FIRST - Post a date, pick a winner & meet up.
Text Case - Format any raw text on iOS and more 📝
Marketing Teams and Slack - A handbook for marketing teams to make the most out of Slack
Really Good Emails - A large collection of good product email design.
Startup Marketing Playbook - The how-to guide for new B2B marketing leaders