Cotter - One-click phone number login and checkout
Amazon - Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & much more
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Atmos Calculator - See what you can build outside of SF/NY for your rent price
TypingDNA Authenticator - 2FA codes in your browser, secured by the way you type
Nest Thermostat - New sleek Nest to turn up your savings