Amazon Alexa Developers Can Now Build Skills for Purchase - Voicebot.ai
GitHub - alexa-samples/skill-sample-nodejs-premium-hello-world: An Alexa sample skill that demonstrates how to use In-Skill Purchasing (ISP) features by offering a "Greetings Pack” and a “Premium Subscription that greets the customer in a variety
Alexa Skills That Are Actually Fun and Useful | WIRED
Amazon introduces paid subscriptions for Alexa skills | TechCrunch