Mockingbird : Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.
Freebase : A community-curated database of well-known people, places, and things
ActiveJS : ActiveJS is a JavaScript application framework that provides local and REST based data modeling and pure DOM view construction with back button and hi...
Azimutt : Azimutt is an Entity Relationship Diagram (ERD) targeting real world database schema (big & messy).
