Rickshaw : Rickshaw is a JavaScript toolkit for creating interactive time series graphs.
Impel : Impel takes the pain out of working with HTML5 asynchronous databases.
Statement callbacks? Transaction callbacks? One-to-many and many-to-many relati...
Bespoke.js : Bespoke.js is a super minimal, modular presentation library for modern browsers, designed to foster a rich plugin ecosystem.
Sammy.js : Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.
yepnope.js : A Conditional Loader For Your Polyfills!
stream.js is a tiny stand-alone Javascript library that unlocks a new data structure for you: streams.