Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Carrd - Simple, responsive one-page site creator.
Intercom Facebook integration - Read, manage & respond to Facebook messages from Intercom
Message.io - Make your chat bots cross-platform
Chatra Messenger - Enjoy the benefits of live chat even when you’re offline.
mmm.page - Dead simple, drag & drop personal websites