Check out this 'state of the art' phone based spoken dialogue system ;-)
Philosophy bites (podcast selection)
Philosophy: The Classics (podcast selection)
- AlgoRythmics: YouTube channel demonstrating sorting algorithms through Hungarian folk dances.
- Kahn Academy: Lots of very instructive videos on a great variety of topics, but mostly mathematics
- videolectures.net: Videos of conference talks, tutorials and keynote speeches, particularly on machine learning topics.