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