Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
Spotify - Map shows when two people play same song at same time
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
SOUNDS - Discover music with friends
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Songlink - Share music with anyone.