Blockbutler - Real-time transaction notifications for the blockchain
KidTech - The best tech for kids & parents curated by Collab Fund
Notif.me SDK - A Node.js lib to send all your transactional notifications
Kidpreneurs - Entrepreneurship for kids 6-12 years old
Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
Interland by Google - A game to help kids be safe, confident explorers online