Cryptominded - Where you learn more about cryptocurrencies
Blockbutler - Real-time transaction notifications for the blockchain
Crypto Buyer's Guide - Extensive cryptocurrency buying guide
Notif.me SDK - A Node.js lib to send all your transactional notifications
CoinList - Build a diverse portfolio of pre-launch token investments
Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.