Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
V12 Data - V12 Data offers rich data sets with verified addresses and emails for personalized marketing campaigns.
Carrd - Simple, responsive one-page site creator.
SmoochBot - Open source on-boarding bot for conversational apps
mmm.page - Dead simple, drag & drop personal websites
Intercom Facebook integration - Read, manage & respond to Facebook messages from Intercom