Visualizing Enron's Email Communications

In a previous post "There You Go With Your Financial Performance Transparency" I mentioned the release of Enron's email communications between 2000/2002, mind you, by Enron's ex-risk management provider. Continuing the series of resourceful posts on visualizing terrorists, intelligence data sharing, security and new media, here's Jeffrey Heer's visual data mining of Enron's email communications sample :

"Using the Enron e-mail archive as a motivating dataset, we are attempting the marriage of visual and algorithmic analyses of e-mail archives within an exploratory data analysis environment. The intent is to leverage the characteristic strengths of both man and machine for unearthing insight. Below are a few sketches from a preliminary exploration into the design space of such tools."

And here's how he visualized the social network, invaluable "big picture".