Ember Charts Nov 11, 2013
Ember Charts is a charting library built with the Ember.js and d3.js frameworks. It includes time series, bar, pie, and scatter charts which are easy to extend and modify. The out-of-the-box behavior these chart components represents our thoughts on best practices in chart interactivity and presentation.
Chart.js: Easy, object oriented client side graphs for designers and developers Oct 16, 2013
6 Chart types; Visualise your data in different ways. Each of them animated, fully customisable and look great, even on retina displays.
HTML5 Based; Chart.js uses the HTML5 canvas element. It supports all modern browsers, and polyfills provide support for IE7/8.
Simple and flexible; Chart.js is dependency free, lightweight (4.5k when minified and gzipped) and offers loads of customisation options.

Demo:
http://www.chartjs.org/