This Norton Fighter shtick is far better than the Symantec Revolution jingle.
MindMeister, the web-based mind-mapping application. Bonus: it has some nice collaborative features as well.
A colleague from graduate school, Nick Kirsch, sent me this article that discusses the military's plan to incorporate Macs into their IT infrastructure. He said it was evidence that someone read my thesis, but I suspect Dan Geer's work had far more influence.