Data Mining Enron's Email
My boss pointed me to a wired article talking about the "Enron Corpus", the collection of 619,446 E-Mails publicly available as a result of the trial.
What a great source of data to practice data mining on. In particular a new visualization engine I heard about called Prefuse from Jeffrey Heer. Check out the Precipe toolkit being used on the Enron Corpus. Very cool stuff.