CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers
Google Payment API - Enable an easy-to-use checkout experience for customers
YC Startup Class - A live, one-hour class by Sam Altman on Platzi
Giftbit Payment API - Stripe for gift cards
Google Classroom - Learning management tool by Google
ACH payments with Stripe - Accept bank payments with a few lines of code.