Notif.me SDK - A Node.js lib to send all your transactional notifications
Token Daily Newsletter - The top crypto news summarised daily - 'theSkimm for Crypto'
Ethereum Push Notification Service - Protocol for incentivized, blockchain based notifications.
Coinzy - Top need-to-know crypto news in less than 8 minutes a day
Blockbutler - Real-time transaction notifications for the blockchain
CoinList - Build a diverse portfolio of pre-launch token investments