OneBar - AI-powered Q&A knowledge base for Slack teams
Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Whatis - Manage & organize your team's knowledge straight from Slack
EmailWay - Collection of the most insightful and informative email newsletters from across a wide spectrum of industries and interests
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Really Good Emails - A large collection of good product email design.