Birdbox - Team bookmarking and note-sharing.
Seva - Email campaigns for creators (previous named ConvertKit)
Zuzu AI - Manage knowledge from your inbox
Kbee - Create a wiki in 5 minutes Kbee turns your Google Drive folders into a fast, searchable wiki for you and your team.
You Need A Wiki - Create a wiki with Google Docs
HelpCrunch Knowledge Base - Deliver instant answers to customers 24/7 with help articles