Free, open source D3, InfoViz, Processing.js, and Recline.js bring dynamic, interactive -- and jaw-dropping -- data-driven graphics to the Web browser
Delivered to your desktop from around the Web, this seemingly endless variety of dynamic and interactive graphics allow news outlets and bloggers and merchants -- anyone with a website and access to a data source -- to present data in dynamic ways you'd never expect to see in a lowly browser.
InfoVis follows a more conservative path. Its API is clearly delineated, and its use is easily grasped: Insert the chart objects and feed them data; InfoViz does the rest.
Finally, Recline.js treats data visualization as one aspect of data exploration. While it prefers its data organized into fields and records, it is nonetheless happy to provide you with timelines, line graphs, or even geographical visualizations.