What is Meteor?
A Meteor application is a mix of JavaScript that runs inside a client web browser, JavaScript that runs on the Meteor server inside a Node.js container, and all the supporting HTML fragments, CSS rules, and static assets.
Meteor is a tool in the Frameworks (Full Stack) category of a tech stack.
Why developers like Meteor
Real-time
Full stack, one language
Best app dev platform available today
Data synchronization
Javascript
Focus on your product not the plumbing
Hot code pushes
Open source
Live page updates