FIRST - Post a date, pick a winner & meet up.
EasyEmail - Gmail plug-in that helps you write emails quickly
Startup Marketing Playbook - The how-to guide for new B2B marketing leaders
Text Case - Format any raw text on iOS and more 📝
100 in 100 Challenge - Get 100 new paid users in 100 days
Really Good Emails - A large collection of good product email design.