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.
Botpress - Open-source platform for developers to build high-quality digital assistants