The Enron Corpus has led to a better understanding of how language is used and how social networks function, and it has improved efforts to uncover social groups based on E-mail communication.

Barneys experienced at least a 10 percent increase in online revenue, as compared to control groups, said Larry Promisel, Barneys' vice President of e-commerce.

But the firm does not have the resources to put the E-4 into production and is looking for other groups or investors interested in helping it take the idea forward.