* **[Aviator](https://github.com/swipely/aviator)** - Aviator is a front-end router built for modular single page applications. ([Example](https://gist.github.com/hojberg/9549330)).
* **[Backbone](https://backbonejs.org/)** - Backbone supplies structure to JavaScript-heavy applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing application over a RESTful JSON interface.