Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
Design Principles - An open source repository of design principles and methods
BotTalk - Create Alexa skills and Google Assistant actions with Markup
Facebook Design Resources - A collection of free resources made by designers at Facebook
OK Google - Explore over 150 Google Now voice commands in one place
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.