Here is an opportunity you do not want to miss: Alberto Cairo and Scott Murray are co-teaching an online course called Data Visualization and Infographics with D3.js. Alberto, professor of Information Graphics and Visualization at the University of Miami, will be teaching the conceptual part or the course, and Scott, author of Interactive Data Visualization for the Web, will introduce and explain the powerful JavaScript library D3.js.

D3.js is one of the best tools to know if you are serious about interactive data visualization online (The New York Times has done amazing things with it). It is a JavaScript library designed specifically to display and control data visualization on web browsers. The learning curve can be a bit steep if you are completely new to web programming, but it is certainly worth the effort.