Data Driven Documents (d3.js) is a library made by Mike Bostock, over at Stanford. Here are a collection of projects and tools I've developed with / for d3.
Explore the release dates and success of movies in 2010. Data scraped from The Numbers (Don't C&D me, bro).
A collection of simple algorithms for calculating scatterplot smoothers.
An implementation of Tufte's slopegraph graphic.