This year, at the Linux Australia conference, Karen Sandler (Executive Director of Gnome Foundation) gave an inspiring talk about why libre software is so important. Karen has a heart condition that requires the use of an artificial pacemaker; when the doctor told her to use it, Karen came with a really simple question: what does it run?
The video resumes her adventure describing the type of software that was in charge of her life. Worth of every minute.
If you prefer to watch the talk in a better quality, you can download it from here (Theora Video codec / .ogv).