Programming for Marketers - Free email course for wannabe technical marketers
Dialogflow - Conversational UX Platform. (ex API.ai)
Olyo - Direct marketing via Facebook Messenger
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Neovidya - Neovidya provides structured access to high-quality educational content.
Botkit - Botkit is an open source developer tool for building chat bots, apps and custom integrations for major messaging platforms.