Principles of Analytical Design - Visually Meetup - Sept. 2011
Exploring Web standards for data visualization
#interactives at Twitter
Hacking public-facing data visualizations at Twitter
JavaScript para Graficos y Visualizacion de Datos - BogotaJS
Data visualization for the web
JavaScript para Graficos y Visualizacion de Datos
New Tools for Visualization in JavaScript - Sept. 2011
Using Web Standards to create Interactive Data Visualizations for the Web
The Geography of Tweets - BBC Developer Conference
From Data Journalism to Data Illustration - Visualizing Data with JavaScript at Twitter
OpenVisConf - WebGL for graphics and data visualization