Spectacle V0 (previously Startup-Videos) - Showcasing the best startup videos
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
Apple TV Tech Talks - Library of videos from Apple's dev team
How To Build Alexa Skills - Step by step of how to build a Alexa Skill for brands
The Innovation Station - A global platform presenting the best videos on innovation
Alexa Skill Builder by Chatamo - Build your own Alexa skills for free (no code required)!