Zendesk Answer Bot - Chatbots
BotList - An app store for bots
Aivo - Skyrocket your Customer Service and Sales KPIs with a Chatbot powered by Artificial Intelligence. Give time back to people.
Telegram movies bot - Movie bot for Telegram.
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Microsoft Bot Framework - Framework to build and connect intelligent bots.