Have you heard about the Semantic Web but still don't know what it really is? I have yet to see a presentation about it that translates to non-techies without being incredibly vague. This video is my (perhaps Quixotic) attempt at something in between.
I gave these two presentations to an audience with no technical background, or interest. If you have at least an interest in how we use language to communicate, and how the Web can harness it better, I hope this will be enlightening.