Visualizing LinkedIn Connections Using Protovis

I wanted to see my LinkedIn connections in an interactive, force-directed graph visualization. This demo uses Protovis to make the visualization interactive.

See Your Facebook Friends' Musical Tastes

Another graph visualization using Facebook data. This time you can explore your friends' musical tastes.

Facebook Constellation

A screenshot of the Facebook music visualization in action. Go ahead and explore your friends' tastes in music.

Visualize Your Wordpress Blog Posts and Categories

This has got to be the easiest way to get your Wordpress blog data into a graph visualization. I've done most of the legwork for integrating with Constellation Roamer so all you have to do is set some configuration options and upload. Give it a try!

Flash Graph Visualizations at

Constellation Roamer, a Flash graph visualization tool, is now available for purchase at

Playing with Fibonacci in Visualization Layout Algorithms

The tightly-packed seeds of a sunflower are a popular example of the occurrence of the Fibonacci sequence in nature and certainly not the only one. Some time ago I read an article about using Fibonacci numbers and the Golden Ratio to create pleasing layouts and logos. Here's an example of how I've applied the idea.

Sunflower image by Esdras Calderan

Visualizing the Structure of the EPA's Website using Constellation

Constellation is being used to visualize the structure of a wiki website for the EPA's Environmental Information Symposium. Read on for more info and a link.