Morris.js is a simple and easy library for drawing charts in efficient way. Using this library, you can draw line charts, bar charts, area charts and donut charts.
Keymaster is a light-weight library for firing/dispatching and defining shortcuts. Just include keymaster.min.js file in your file and start defining shortcuts.
Skrollr allows to animate any CSS property or HTML element on the horizontal scroll-bar position.
Yeoman is a best and robust client-side stack, comprising frameworks and tools to help developers building beautiful and nice web applications.
jPages is the best client-side pagination plugin that I ever used. Using this plugin, you can develop navigation panels according to your choice and can place them where you want.