AOP for JS with before, around, on, afterReturning, afterThrowing, after advice, and pointcuts
Template antimatter for Node.js (Browsers too!)
Client side MVC framework
reactive DOM template engine built for speed, and extensibility
Blueprint for modern web development
AMD and CJS dependency management in the browser
Tungsten.js is a modular framework for creating web UIs with high-performance rendering on both server and client.
Google Analytics on Steroids. A Google Analytics implementation with more power features.
The Single Page Application Framework for KnockoutJS
A simple, lightweight library making it easy to create routes or run events based on a specific URL hashtag.