Expensive Chat - Chatroom where you pay per letter
Dialogflow - Conversational UX Platform. (ex API.ai)
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Intro.ly - Get paid to introduce people to things they want
Botpress - Open-source platform for developers to build high-quality digital assistants
YAM - Video Q&A platform where you can get paid to ask or answer questions.